Home / 145,514,986.20-218,272,479.30-99,598,483.80

Finding the Fourth Proportional to 145,514,986.20, 218,272,479.30 and 99,598,483.80

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Solution

The fourth proportional to 145,514,986.20, 218,272,479.30 and 99,598,483.80 is: 149,397,725.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,514,986.20 : 218,272,479.30 = 99,598,483.80 : x
  2. Step 2: Convert to fraction form
    145,514,986.20/218,272,479.30 = 99,598,483.80/x
  3. Step 3: Cross multiply
    145,514,986.20x = 218,272,479.30 × 99,598,483.80
  4. Step 4: Simplify right side
    145,514,986.20x = 21,739,607,993,546,884
  5. Step 5: Solve for x
    x = 21,739,607,993,546,884/145,514,986.20
  6. Step 6: Final answer
    x = 149,397,725.70

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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.