Home / 426,516,904.92-639,344,644.74-167,913,635.16

Finding the Fourth Proportional to 426,516,904.92, 639,344,644.74 and 167,913,635.16

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Solution

The fourth proportional to 426,516,904.92, 639,344,644.74 and 167,913,635.16 is: 251,700,887.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,516,904.92 : 639,344,644.74 = 167,913,635.16 : x
  2. Step 2: Convert to fraction form
    426,516,904.92/639,344,644.74 = 167,913,635.16/x
  3. Step 3: Cross multiply
    426,516,904.92x = 639,344,644.74 × 167,913,635.16
  4. Step 4: Simplify right side
    426,516,904.92x = 107,354,683,418,372,176
  5. Step 5: Solve for x
    x = 107,354,683,418,372,176/426,516,904.92
  6. Step 6: Final answer
    x = 251,700,887.30

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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.