Home / 12,921,497.60-19,358,918.40-7,525,731.20

Finding the Fourth Proportional to 12,921,497.60, 19,358,918.40 and 7,525,731.20

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Solution

The fourth proportional to 12,921,497.60, 19,358,918.40 and 7,525,731.20 is: 11,275,010.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,921,497.60 : 19,358,918.40 = 7,525,731.20 : x
  2. Step 2: Convert to fraction form
    12,921,497.60/19,358,918.40 = 7,525,731.20/x
  3. Step 3: Cross multiply
    12,921,497.60x = 19,358,918.40 × 7,525,731.20
  4. Step 4: Simplify right side
    12,921,497.60x = 145,690,016,201,134.06
  5. Step 5: Solve for x
    x = 145,690,016,201,134.06/12,921,497.60
  6. Step 6: Final answer
    x = 11,275,010.12

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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.