Home / 291,397,657.10-437,040,498.45-86,932,402.70

Finding the Fourth Proportional to 291,397,657.10, 437,040,498.45 and 86,932,402.70

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Solution

The fourth proportional to 291,397,657.10, 437,040,498.45 and 86,932,402.70 is: 130,381,901.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,397,657.10 : 437,040,498.45 = 86,932,402.70 : x
  2. Step 2: Convert to fraction form
    291,397,657.10/437,040,498.45 = 86,932,402.70/x
  3. Step 3: Cross multiply
    291,397,657.10x = 437,040,498.45 × 86,932,402.70
  4. Step 4: Simplify right side
    291,397,657.10x = 37,992,980,607,464,128
  5. Step 5: Solve for x
    x = 37,992,980,607,464,128/291,397,657.10
  6. Step 6: Final answer
    x = 130,381,901.44

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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.