Home / 10,779,726.80-16,169,590.20-5,389,209.20

Finding the Fourth Proportional to 10,779,726.80, 16,169,590.20 and 5,389,209.20

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Solution

The fourth proportional to 10,779,726.80, 16,169,590.20 and 5,389,209.20 is: 8,083,813.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,779,726.80 : 16,169,590.20 = 5,389,209.20 : x
  2. Step 2: Convert to fraction form
    10,779,726.80/16,169,590.20 = 5,389,209.20/x
  3. Step 3: Cross multiply
    10,779,726.80x = 16,169,590.20 × 5,389,209.20
  4. Step 4: Simplify right side
    10,779,726.80x = 87,141,304,266,069.84
  5. Step 5: Solve for x
    x = 87,141,304,266,069.84/10,779,726.80
  6. Step 6: Final answer
    x = 8,083,813.80

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Double scale
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Similar ratio
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1.5x scale

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.