Home / 13,557,124.13-18,708,978.92-7,445,552.63

Finding the Fourth Proportional to 13,557,124.13, 18,708,978.92 and 7,445,552.63

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Solution

The fourth proportional to 13,557,124.13, 18,708,978.92 and 7,445,552.63 is: 10,274,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,557,124.13 : 18,708,978.92 = 7,445,552.63 : x
  2. Step 2: Convert to fraction form
    13,557,124.13/18,708,978.92 = 7,445,552.63/x
  3. Step 3: Cross multiply
    13,557,124.13x = 18,708,978.92 × 7,445,552.63
  4. Step 4: Simplify right side
    13,557,124.13x = 139,298,687,071,647.89
  5. Step 5: Solve for x
    x = 139,298,687,071,647.89/13,557,124.13
  6. Step 6: Final answer
    x = 10,274,943.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.