Home / 128,121,702.47-192,215,325.89-37,245,291.47

Finding the Fourth Proportional to 128,121,702.47, 192,215,325.89 and 37,245,291.47

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Solution

The fourth proportional to 128,121,702.47, 192,215,325.89 and 37,245,291.47 is: 55,877,464.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,121,702.47 : 192,215,325.89 = 37,245,291.47 : x
  2. Step 2: Convert to fraction form
    128,121,702.47/192,215,325.89 = 37,245,291.47/x
  3. Step 3: Cross multiply
    128,121,702.47x = 192,215,325.89 × 37,245,291.47
  4. Step 4: Simplify right side
    128,121,702.47x = 7,159,115,838,347,739
  5. Step 5: Solve for x
    x = 7,159,115,838,347,739/128,121,702.47
  6. Step 6: Final answer
    x = 55,877,464.16

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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.