Home / 108,779,939.60-162,791,995.80-99,710,013.20

Finding the Fourth Proportional to 108,779,939.60, 162,791,995.80 and 99,710,013.20

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Solution

The fourth proportional to 108,779,939.60, 162,791,995.80 and 99,710,013.20 is: 149,218,616.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,779,939.60 : 162,791,995.80 = 99,710,013.20 : x
  2. Step 2: Convert to fraction form
    108,779,939.60/162,791,995.80 = 99,710,013.20/x
  3. Step 3: Cross multiply
    108,779,939.60x = 162,791,995.80 × 99,710,013.20
  4. Step 4: Simplify right side
    108,779,939.60x = 16,231,992,050,072,346
  5. Step 5: Solve for x
    x = 16,231,992,050,072,346/108,779,939.60
  6. Step 6: Final answer
    x = 149,218,616.13

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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.