Home / 38,191,436,821.59-52,701,808,099.26-21,043,330,475.30

Finding the Fourth Proportional to 38,191,436,821.59, 52,701,808,099.26 and 21,043,330,475.30

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Solution

The fourth proportional to 38,191,436,821.59, 52,701,808,099.26 and 21,043,330,475.30 is: 29,038,487,597.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,191,436,821.59 : 52,701,808,099.26 = 21,043,330,475.30 : x
  2. Step 2: Convert to fraction form
    38,191,436,821.59/52,701,808,099.26 = 21,043,330,475.30/x
  3. Step 3: Cross multiply
    38,191,436,821.59x = 52,701,808,099.26 × 21,043,330,475.30
  4. Step 4: Simplify right side
    38,191,436,821.59x = 1,109,021,564,478,528,028,672
  5. Step 5: Solve for x
    x = 1,109,021,564,478,528,028,672/38,191,436,821.59
  6. Step 6: Final answer
    x = 29,038,487,597.61

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Double scale
Find fourth proportional to 38,191,436,822.59, 52,701,808,100.64 and 21,043,330,476.30
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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.