Home / 20,278,866.42-30,400,978.59-7,496,988.66

Finding the Fourth Proportional to 20,278,866.42, 30,400,978.59 and 7,496,988.66

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Solution

The fourth proportional to 20,278,866.42, 30,400,978.59 and 7,496,988.66 is: 11,239,079.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,278,866.42 : 30,400,978.59 = 7,496,988.66 : x
  2. Step 2: Convert to fraction form
    20,278,866.42/30,400,978.59 = 7,496,988.66/x
  3. Step 3: Cross multiply
    20,278,866.42x = 30,400,978.59 × 7,496,988.66
  4. Step 4: Simplify right side
    20,278,866.42x = 227,915,791,742,132.78
  5. Step 5: Solve for x
    x = 227,915,791,742,132.78/20,278,866.42
  6. Step 6: Final answer
    x = 11,239,079.49

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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.