Home / 83,620,046.70-125,430,070.05-66,401,358.30

Finding the Fourth Proportional to 83,620,046.70, 125,430,070.05 and 66,401,358.30

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Solution

The fourth proportional to 83,620,046.70, 125,430,070.05 and 66,401,358.30 is: 99,602,037.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,620,046.70 : 125,430,070.05 = 66,401,358.30 : x
  2. Step 2: Convert to fraction form
    83,620,046.70/125,430,070.05 = 66,401,358.30/x
  3. Step 3: Cross multiply
    83,620,046.70x = 125,430,070.05 × 66,401,358.30
  4. Step 4: Simplify right side
    83,620,046.70x = 8,328,727,022,984,148
  5. Step 5: Solve for x
    x = 8,328,727,022,984,148/83,620,046.70
  6. Step 6: Final answer
    x = 99,602,037.45

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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.