Home / 108,779,846.60-162,791,856.30-99,709,920.20

Finding the Fourth Proportional to 108,779,846.60, 162,791,856.30 and 99,709,920.20

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Solution

The fourth proportional to 108,779,846.60, 162,791,856.30 and 99,709,920.20 is: 149,218,476.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,779,846.60 : 162,791,856.30 = 99,709,920.20 : x
  2. Step 2: Convert to fraction form
    108,779,846.60/162,791,856.30 = 99,709,920.20/x
  3. Step 3: Cross multiply
    108,779,846.60x = 162,791,856.30 × 99,709,920.20
  4. Step 4: Simplify right side
    108,779,846.60x = 16,231,963,000,882,868
  5. Step 5: Solve for x
    x = 16,231,963,000,882,868/108,779,846.60
  6. Step 6: Final answer
    x = 149,218,476.66

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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.