Home / 472,911,495.40-709,435,040.10-145,414,514.80

Finding the Fourth Proportional to 472,911,495.40, 709,435,040.10 and 145,414,514.80

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Solution

The fourth proportional to 472,911,495.40, 709,435,040.10 and 145,414,514.80 is: 218,142,618.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,911,495.40 : 709,435,040.10 = 145,414,514.80 : x
  2. Step 2: Convert to fraction form
    472,911,495.40/709,435,040.10 = 145,414,514.80/x
  3. Step 3: Cross multiply
    472,911,495.40x = 709,435,040.10 × 145,414,514.80
  4. Step 4: Simplify right side
    472,911,495.40x = 103,162,152,138,260,048
  5. Step 5: Solve for x
    x = 103,162,152,138,260,048/472,911,495.40
  6. Step 6: Final answer
    x = 218,142,618.95

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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.