Home / 38,191,436,824.78-52,701,808,103.67-21,043,330,478.48

Finding the Fourth Proportional to 38,191,436,824.78, 52,701,808,103.67 and 21,043,330,478.48

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Solution

The fourth proportional to 38,191,436,824.78, 52,701,808,103.67 and 21,043,330,478.48 is: 29,038,487,601.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,191,436,824.78 : 52,701,808,103.67 = 21,043,330,478.48 : x
  2. Step 2: Convert to fraction form
    38,191,436,824.78/52,701,808,103.67 = 21,043,330,478.48/x
  3. Step 3: Cross multiply
    38,191,436,824.78x = 52,701,808,103.67 × 21,043,330,478.48
  4. Step 4: Simplify right side
    38,191,436,824.78x = 1,109,021,564,738,594,406,400
  5. Step 5: Solve for x
    x = 1,109,021,564,738,594,406,400/38,191,436,824.78
  6. Step 6: Final answer
    x = 29,038,487,601.99

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Double scale
Find fourth proportional to 38,191,436,825.78, 52,701,808,105.04 and 21,043,330,479.48
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.