Home / 85,202,403.90-127,803,605.85-74,679,872.10

Finding the Fourth Proportional to 85,202,403.90, 127,803,605.85 and 74,679,872.10

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Solution

The fourth proportional to 85,202,403.90, 127,803,605.85 and 74,679,872.10 is: 112,019,808.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,202,403.90 : 127,803,605.85 = 74,679,872.10 : x
  2. Step 2: Convert to fraction form
    85,202,403.90/127,803,605.85 = 74,679,872.10/x
  3. Step 3: Cross multiply
    85,202,403.90x = 127,803,605.85 × 74,679,872.10
  4. Step 4: Simplify right side
    85,202,403.90x = 9,544,356,938,796,810
  5. Step 5: Solve for x
    x = 9,544,356,938,796,810/85,202,403.90
  6. Step 6: Final answer
    x = 112,019,808.15

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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.