Home / 138,895,567.65-191,684,499.48-77,015,906.28

Finding the Fourth Proportional to 138,895,567.65, 191,684,499.48 and 77,015,906.28

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Solution

The fourth proportional to 138,895,567.65, 191,684,499.48 and 77,015,906.28 is: 106,286,728.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,895,567.65 : 191,684,499.48 = 77,015,906.28 : x
  2. Step 2: Convert to fraction form
    138,895,567.65/191,684,499.48 = 77,015,906.28/x
  3. Step 3: Cross multiply
    138,895,567.65x = 191,684,499.48 × 77,015,906.28
  4. Step 4: Simplify right side
    138,895,567.65x = 14,762,755,447,280,388
  5. Step 5: Solve for x
    x = 14,762,755,447,280,388/138,895,567.65
  6. Step 6: Final answer
    x = 106,286,728.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.