Home / 8,487,456.96-12,731,189.55-2,807,681.28

Finding the Fourth Proportional to 8,487,456.96, 12,731,189.55 and 2,807,681.28

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Solution

The fourth proportional to 8,487,456.96, 12,731,189.55 and 2,807,681.28 is: 4,211,523.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487,456.96 : 12,731,189.55 = 2,807,681.28 : x
  2. Step 2: Convert to fraction form
    8,487,456.96/12,731,189.55 = 2,807,681.28/x
  3. Step 3: Cross multiply
    8,487,456.96x = 12,731,189.55 × 2,807,681.28
  4. Step 4: Simplify right side
    8,487,456.96x = 35,745,122,513,395.86
  5. Step 5: Solve for x
    x = 35,745,122,513,395.86/8,487,456.96
  6. Step 6: Final answer
    x = 4,211,523.27

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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.