Home / 719,523,385.95-992,949,118.15-422,170,687.25

Finding the Fourth Proportional to 719,523,385.95, 992,949,118.15 and 422,170,687.25

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Solution

The fourth proportional to 719,523,385.95, 992,949,118.15 and 422,170,687.25 is: 582,599,564.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,523,385.95 : 992,949,118.15 = 422,170,687.25 : x
  2. Step 2: Convert to fraction form
    719,523,385.95/992,949,118.15 = 422,170,687.25/x
  3. Step 3: Cross multiply
    719,523,385.95x = 992,949,118.15 × 422,170,687.25
  4. Step 4: Simplify right side
    719,523,385.95x = 419,194,011,613,666,944
  5. Step 5: Solve for x
    x = 419,194,011,613,666,944/719,523,385.95
  6. Step 6: Final answer
    x = 582,599,564.93

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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.