Home / 10,411,390.80-15,600,497.40-7,724,005.20

Finding the Fourth Proportional to 10,411,390.80, 15,600,497.40 and 7,724,005.20

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Solution

The fourth proportional to 10,411,390.80, 15,600,497.40 and 7,724,005.20 is: 11,573,700.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,411,390.80 : 15,600,497.40 = 7,724,005.20 : x
  2. Step 2: Convert to fraction form
    10,411,390.80/15,600,497.40 = 7,724,005.20/x
  3. Step 3: Cross multiply
    10,411,390.80x = 15,600,497.40 × 7,724,005.20
  4. Step 4: Simplify right side
    10,411,390.80x = 120,498,323,040,186.48
  5. Step 5: Solve for x
    x = 120,498,323,040,186.48/10,411,390.80
  6. Step 6: Final answer
    x = 11,573,700.90

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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.