Home / 84,249,424.80-126,336,812.40-38,825,143.20

Finding the Fourth Proportional to 84,249,424.80, 126,336,812.40 and 38,825,143.20

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Solution

The fourth proportional to 84,249,424.80, 126,336,812.40 and 38,825,143.20 is: 58,220,514.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,249,424.80 : 126,336,812.40 = 38,825,143.20 : x
  2. Step 2: Convert to fraction form
    84,249,424.80/126,336,812.40 = 38,825,143.20/x
  3. Step 3: Cross multiply
    84,249,424.80x = 126,336,812.40 × 38,825,143.20
  4. Step 4: Simplify right side
    84,249,424.80x = 4,905,044,832,861,536
  5. Step 5: Solve for x
    x = 4,905,044,832,861,536/84,249,424.80
  6. Step 6: Final answer
    x = 58,220,514.20

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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.