Home / 12,428,691.44-18,643,038.50-3,792,837.15

Finding the Fourth Proportional to 12,428,691.44, 18,643,038.50 and 3,792,837.15

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Solution

The fourth proportional to 12,428,691.44, 18,643,038.50 and 3,792,837.15 is: 5,689,256.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,428,691.44 : 18,643,038.50 = 3,792,837.15 : x
  2. Step 2: Convert to fraction form
    12,428,691.44/18,643,038.50 = 3,792,837.15/x
  3. Step 3: Cross multiply
    12,428,691.44x = 18,643,038.50 × 3,792,837.15
  4. Step 4: Simplify right side
    12,428,691.44x = 70,710,009,021,162.38
  5. Step 5: Solve for x
    x = 70,710,009,021,162.38/12,428,691.44
  6. Step 6: Final answer
    x = 5,689,256.14

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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.