Home / 487,211,154.50-730,859,693.56-137,460,282.50

Finding the Fourth Proportional to 487,211,154.50, 730,859,693.56 and 137,460,282.50

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Solution

The fourth proportional to 487,211,154.50, 730,859,693.56 and 137,460,282.50 is: 206,202,544.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,211,154.50 : 730,859,693.56 = 137,460,282.50 : x
  2. Step 2: Convert to fraction form
    487,211,154.50/730,859,693.56 = 137,460,282.50/x
  3. Step 3: Cross multiply
    487,211,154.50x = 730,859,693.56 × 137,460,282.50
  4. Step 4: Simplify right side
    487,211,154.50x = 100,464,179,944,621,024
  5. Step 5: Solve for x
    x = 100,464,179,944,621,024/487,211,154.50
  6. Step 6: Final answer
    x = 206,202,544.87

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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.