Home / 280,053,386.70-420,080,080.05-150,913,223.70

Finding the Fourth Proportional to 280,053,386.70, 420,080,080.05 and 150,913,223.70

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Solution

The fourth proportional to 280,053,386.70, 420,080,080.05 and 150,913,223.70 is: 226,369,835.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,053,386.70 : 420,080,080.05 = 150,913,223.70 : x
  2. Step 2: Convert to fraction form
    280,053,386.70/420,080,080.05 = 150,913,223.70/x
  3. Step 3: Cross multiply
    280,053,386.70x = 420,080,080.05 × 150,913,223.70
  4. Step 4: Simplify right side
    280,053,386.70x = 63,395,639,092,499,552
  5. Step 5: Solve for x
    x = 63,395,639,092,499,552/280,053,386.70
  6. Step 6: Final answer
    x = 226,369,835.55

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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.