Home / 499,987,341.60-749,981,012.40-172,462,221.60

Finding the Fourth Proportional to 499,987,341.60, 749,981,012.40 and 172,462,221.60

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Solution

The fourth proportional to 499,987,341.60, 749,981,012.40 and 172,462,221.60 is: 258,693,332.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,987,341.60 : 749,981,012.40 = 172,462,221.60 : x
  2. Step 2: Convert to fraction form
    499,987,341.60/749,981,012.40 = 172,462,221.60/x
  3. Step 3: Cross multiply
    499,987,341.60x = 749,981,012.40 × 172,462,221.60
  4. Step 4: Simplify right side
    499,987,341.60x = 129,343,391,556,321,136
  5. Step 5: Solve for x
    x = 129,343,391,556,321,136/499,987,341.60
  6. Step 6: Final answer
    x = 258,693,332.40

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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.