Home / 71,208,035.70-106,812,053.55-66,430,461.30

Finding the Fourth Proportional to 71,208,035.70, 106,812,053.55 and 66,430,461.30

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Solution

The fourth proportional to 71,208,035.70, 106,812,053.55 and 66,430,461.30 is: 99,645,691.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,208,035.70 : 106,812,053.55 = 66,430,461.30 : x
  2. Step 2: Convert to fraction form
    71,208,035.70/106,812,053.55 = 66,430,461.30/x
  3. Step 3: Cross multiply
    71,208,035.70x = 106,812,053.55 × 66,430,461.30
  4. Step 4: Simplify right side
    71,208,035.70x = 7,095,573,989,726,802
  5. Step 5: Solve for x
    x = 7,095,573,989,726,802/71,208,035.70
  6. Step 6: Final answer
    x = 99,645,691.95

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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.