Home / 108,779,902.60-162,791,940.30-99,709,976.20

Finding the Fourth Proportional to 108,779,902.60, 162,791,940.30 and 99,709,976.20

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Solution

The fourth proportional to 108,779,902.60, 162,791,940.30 and 99,709,976.20 is: 149,218,560.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,779,902.60 : 162,791,940.30 = 99,709,976.20 : x
  2. Step 2: Convert to fraction form
    108,779,902.60/162,791,940.30 = 99,709,976.20/x
  3. Step 3: Cross multiply
    108,779,902.60x = 162,791,940.30 × 99,709,976.20
  4. Step 4: Simplify right side
    108,779,902.60x = 16,231,980,492,864,822
  5. Step 5: Solve for x
    x = 16,231,980,492,864,822/108,779,902.60
  6. Step 6: Final answer
    x = 149,218,560.64

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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.