Home / 403,402,409.20-605,103,613.80-346,006,781.20

Finding the Fourth Proportional to 403,402,409.20, 605,103,613.80 and 346,006,781.20

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Solution

The fourth proportional to 403,402,409.20, 605,103,613.80 and 346,006,781.20 is: 519,010,171.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,402,409.20 : 605,103,613.80 = 346,006,781.20 : x
  2. Step 2: Convert to fraction form
    403,402,409.20/605,103,613.80 = 346,006,781.20/x
  3. Step 3: Cross multiply
    403,402,409.20x = 605,103,613.80 × 346,006,781.20
  4. Step 4: Simplify right side
    403,402,409.20x = 209,369,953,703,425,888
  5. Step 5: Solve for x
    x = 209,369,953,703,425,888/403,402,409.20
  6. Step 6: Final answer
    x = 519,010,171.80

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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.