Home / 485,333,764.10-728,000,646.15-194,245,813.70

Finding the Fourth Proportional to 485,333,764.10, 728,000,646.15 and 194,245,813.70

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Solution

The fourth proportional to 485,333,764.10, 728,000,646.15 and 194,245,813.70 is: 291,368,720.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    485,333,764.10 : 728,000,646.15 = 194,245,813.70 : x
  2. Step 2: Convert to fraction form
    485,333,764.10/728,000,646.15 = 194,245,813.70/x
  3. Step 3: Cross multiply
    485,333,764.10x = 728,000,646.15 × 194,245,813.70
  4. Step 4: Simplify right side
    485,333,764.10x = 141,411,077,885,532,512
  5. Step 5: Solve for x
    x = 141,411,077,885,532,512/485,333,764.10
  6. Step 6: Final answer
    x = 291,368,720.55

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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.