Home / 105,428,937.60-145,490,812.20-59,019,572.88

Finding the Fourth Proportional to 105,428,937.60, 145,490,812.20 and 59,019,572.88

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Solution

The fourth proportional to 105,428,937.60, 145,490,812.20 and 59,019,572.88 is: 81,446,382.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,428,937.60 : 145,490,812.20 = 59,019,572.88 : x
  2. Step 2: Convert to fraction form
    105,428,937.60/145,490,812.20 = 59,019,572.88/x
  3. Step 3: Cross multiply
    105,428,937.60x = 145,490,812.20 × 59,019,572.88
  4. Step 4: Simplify right side
    105,428,937.60x = 8,586,805,594,008,293
  5. Step 5: Solve for x
    x = 8,586,805,594,008,293/105,428,937.60
  6. Step 6: Final answer
    x = 81,446,382.65

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1.5x scale

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.