Home / 256,681,816.91-384,995,430.88-72,444,737.87

Finding the Fourth Proportional to 256,681,816.91, 384,995,430.88 and 72,444,737.87

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Solution

The fourth proportional to 256,681,816.91, 384,995,430.88 and 72,444,737.87 is: 108,659,403.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,681,816.91 : 384,995,430.88 = 72,444,737.87 : x
  2. Step 2: Convert to fraction form
    256,681,816.91/384,995,430.88 = 72,444,737.87/x
  3. Step 3: Cross multiply
    256,681,816.91x = 384,995,430.88 × 72,444,737.87
  4. Step 4: Simplify right side
    256,681,816.91x = 27,890,893,068,962,100
  5. Step 5: Solve for x
    x = 27,890,893,068,962,100/256,681,816.91
  6. Step 6: Final answer
    x = 108,659,403.32

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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.