Home / 115,074,930.64-172,680,495.36-42,342,785.32

Finding the Fourth Proportional to 115,074,930.64, 172,680,495.36 and 42,342,785.32

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Solution

The fourth proportional to 115,074,930.64, 172,680,495.36 and 42,342,785.32 is: 63,539,235.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,074,930.64 : 172,680,495.36 = 42,342,785.32 : x
  2. Step 2: Convert to fraction form
    115,074,930.64/172,680,495.36 = 42,342,785.32/x
  3. Step 3: Cross multiply
    115,074,930.64x = 172,680,495.36 × 42,342,785.32
  4. Step 4: Simplify right side
    115,074,930.64x = 7,311,773,143,979,737
  5. Step 5: Solve for x
    x = 7,311,773,143,979,737/115,074,930.64
  6. Step 6: Final answer
    x = 63,539,235.73

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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.