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Finding the Fourth Proportional to 76,608,411.60, 114,912,617.40 and 25,495,597.20

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Solution

The fourth proportional to 76,608,411.60, 114,912,617.40 and 25,495,597.20 is: 38,243,395.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,608,411.60 : 114,912,617.40 = 25,495,597.20 : x
  2. Step 2: Convert to fraction form
    76,608,411.60/114,912,617.40 = 25,495,597.20/x
  3. Step 3: Cross multiply
    76,608,411.60x = 114,912,617.40 × 25,495,597.20
  4. Step 4: Simplify right side
    76,608,411.60x = 2,929,765,806,428,111.50
  5. Step 5: Solve for x
    x = 2,929,765,806,428,111.50/76,608,411.60
  6. Step 6: Final answer
    x = 38,243,395.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.