Home / 239,428,913.40-358,971,003.05-147,121,932.15

Finding the Fourth Proportional to 239,428,913.40, 358,971,003.05 and 147,121,932.15

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Solution

The fourth proportional to 239,428,913.40, 358,971,003.05 and 147,121,932.15 is: 220,576,983.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,428,913.40 : 358,971,003.05 = 147,121,932.15 : x
  2. Step 2: Convert to fraction form
    239,428,913.40/358,971,003.05 = 147,121,932.15/x
  3. Step 3: Cross multiply
    239,428,913.40x = 358,971,003.05 × 147,121,932.15
  4. Step 4: Simplify right side
    239,428,913.40x = 52,812,507,553,803,936
  5. Step 5: Solve for x
    x = 52,812,507,553,803,936/239,428,913.40
  6. Step 6: Final answer
    x = 220,576,983.81

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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.