Home / 86,911,280.90-130,366,921.35-29,405,428.10

Finding the Fourth Proportional to 86,911,280.90, 130,366,921.35 and 29,405,428.10

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Solution

The fourth proportional to 86,911,280.90, 130,366,921.35 and 29,405,428.10 is: 44,108,142.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,911,280.90 : 130,366,921.35 = 29,405,428.10 : x
  2. Step 2: Convert to fraction form
    86,911,280.90/130,366,921.35 = 29,405,428.10/x
  3. Step 3: Cross multiply
    86,911,280.90x = 130,366,921.35 × 29,405,428.10
  4. Step 4: Simplify right side
    86,911,280.90x = 3,833,495,132,375,780
  5. Step 5: Solve for x
    x = 3,833,495,132,375,780/86,911,280.90
  6. Step 6: Final answer
    x = 44,108,142.15

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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.