Home / 406,566,010.80-609,849,016.20-345,344,007.60

Finding the Fourth Proportional to 406,566,010.80, 609,849,016.20 and 345,344,007.60

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Solution

The fourth proportional to 406,566,010.80, 609,849,016.20 and 345,344,007.60 is: 518,016,011.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,566,010.80 : 609,849,016.20 = 345,344,007.60 : x
  2. Step 2: Convert to fraction form
    406,566,010.80/609,849,016.20 = 345,344,007.60/x
  3. Step 3: Cross multiply
    406,566,010.80x = 609,849,016.20 × 345,344,007.60
  4. Step 4: Simplify right side
    406,566,010.80x = 210,607,703,285,425,344
  5. Step 5: Solve for x
    x = 210,607,703,285,425,344/406,566,010.80
  6. Step 6: Final answer
    x = 518,016,011.40

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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.