Home / 78,822,012.60-118,233,018.90-57,154,966.20

Finding the Fourth Proportional to 78,822,012.60, 118,233,018.90 and 57,154,966.20

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Solution

The fourth proportional to 78,822,012.60, 118,233,018.90 and 57,154,966.20 is: 85,732,449.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,822,012.60 : 118,233,018.90 = 57,154,966.20 : x
  2. Step 2: Convert to fraction form
    78,822,012.60/118,233,018.90 = 57,154,966.20/x
  3. Step 3: Cross multiply
    78,822,012.60x = 118,233,018.90 × 57,154,966.20
  4. Step 4: Simplify right side
    78,822,012.60x = 6,757,604,198,953,462
  5. Step 5: Solve for x
    x = 6,757,604,198,953,462/78,822,012.60
  6. Step 6: Final answer
    x = 85,732,449.30

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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.