Home / 38,191,436,810.79-52,701,808,084.47-21,043,330,464.48

Finding the Fourth Proportional to 38,191,436,810.79, 52,701,808,084.47 and 21,043,330,464.48

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Solution

The fourth proportional to 38,191,436,810.79, 52,701,808,084.47 and 21,043,330,464.48 is: 29,038,487,582.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,191,436,810.79 : 52,701,808,084.47 = 21,043,330,464.48 : x
  2. Step 2: Convert to fraction form
    38,191,436,810.79/52,701,808,084.47 = 21,043,330,464.48/x
  3. Step 3: Cross multiply
    38,191,436,810.79x = 52,701,808,084.47 × 21,043,330,464.48
  4. Step 4: Simplify right side
    38,191,436,810.79x = 1,109,021,563,597,105,922,048
  5. Step 5: Solve for x
    x = 1,109,021,563,597,105,922,048/38,191,436,810.79
  6. Step 6: Final answer
    x = 29,038,487,582.74

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Double scale
Find fourth proportional to 38,191,436,811.79, 52,701,808,085.85 and 21,043,330,465.48
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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.