Home / 12,465,356.16-18,730,912.80-6,712,343.28

Finding the Fourth Proportional to 12,465,356.16, 18,730,912.80 and 6,712,343.28

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Solution

The fourth proportional to 12,465,356.16, 18,730,912.80 and 6,712,343.28 is: 10,086,219.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,465,356.16 : 18,730,912.80 = 6,712,343.28 : x
  2. Step 2: Convert to fraction form
    12,465,356.16/18,730,912.80 = 6,712,343.28/x
  3. Step 3: Cross multiply
    12,465,356.16x = 18,730,912.80 × 6,712,343.28
  4. Step 4: Simplify right side
    12,465,356.16x = 125,728,316,661,346
  5. Step 5: Solve for x
    x = 125,728,316,661,346/12,465,356.16
  6. Step 6: Final answer
    x = 10,086,219.36

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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.