Home / 205,126,947.80-307,690,421.70-61,519,779.80

Finding the Fourth Proportional to 205,126,947.80, 307,690,421.70 and 61,519,779.80

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Solution

The fourth proportional to 205,126,947.80, 307,690,421.70 and 61,519,779.80 is: 92,279,669.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,126,947.80 : 307,690,421.70 = 61,519,779.80 : x
  2. Step 2: Convert to fraction form
    205,126,947.80/307,690,421.70 = 61,519,779.80/x
  3. Step 3: Cross multiply
    205,126,947.80x = 307,690,421.70 × 61,519,779.80
  4. Step 4: Simplify right side
    205,126,947.80x = 18,929,046,989,553,140
  5. Step 5: Solve for x
    x = 18,929,046,989,553,140/205,126,947.80
  6. Step 6: Final answer
    x = 92,279,669.70

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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.