Home / 8,487,457.40-12,731,190.20-2,807,681.71

Finding the Fourth Proportional to 8,487,457.40, 12,731,190.20 and 2,807,681.71

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Solution

The fourth proportional to 8,487,457.40, 12,731,190.20 and 2,807,681.71 is: 4,211,523.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,487,457.40 : 12,731,190.20 = 2,807,681.71 : x
  2. Step 2: Convert to fraction form
    8,487,457.40/12,731,190.20 = 2,807,681.71/x
  3. Step 3: Cross multiply
    8,487,457.40x = 12,731,190.20 × 2,807,681.71
  4. Step 4: Simplify right side
    8,487,457.40x = 35,745,129,871,071.24
  5. Step 5: Solve for x
    x = 35,745,129,871,071.24/8,487,457.40
  6. Step 6: Final answer
    x = 4,211,523.92

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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.