Home / 465,406,069.23-642,264,707.70-256,569,685.20

Finding the Fourth Proportional to 465,406,069.23, 642,264,707.70 and 256,569,685.20

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Solution

The fourth proportional to 465,406,069.23, 642,264,707.70 and 256,569,685.20 is: 354,068,553.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,406,069.23 : 642,264,707.70 = 256,569,685.20 : x
  2. Step 2: Convert to fraction form
    465,406,069.23/642,264,707.70 = 256,569,685.20/x
  3. Step 3: Cross multiply
    465,406,069.23x = 642,264,707.70 × 256,569,685.20
  4. Step 4: Simplify right side
    465,406,069.23x = 164,785,653,869,659,008
  5. Step 5: Solve for x
    x = 164,785,653,869,659,008/465,406,069.23
  6. Step 6: Final answer
    x = 354,068,553.82

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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.