Home / 291,397,665.60-437,040,511.20-86,932,411.20

Finding the Fourth Proportional to 291,397,665.60, 437,040,511.20 and 86,932,411.20

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Solution

The fourth proportional to 291,397,665.60, 437,040,511.20 and 86,932,411.20 is: 130,381,914.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,397,665.60 : 437,040,511.20 = 86,932,411.20 : x
  2. Step 2: Convert to fraction form
    291,397,665.60/437,040,511.20 = 86,932,411.20/x
  3. Step 3: Cross multiply
    291,397,665.60x = 437,040,511.20 × 86,932,411.20
  4. Step 4: Simplify right side
    291,397,665.60x = 37,992,985,430,696,608
  5. Step 5: Solve for x
    x = 37,992,985,430,696,608/291,397,665.60
  6. Step 6: Final answer
    x = 130,381,914.19

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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.