Home / 309,338,657.29-426,895,437.65-168,218,131.29

Finding the Fourth Proportional to 309,338,657.29, 426,895,437.65 and 168,218,131.29

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Solution

The fourth proportional to 309,338,657.29, 426,895,437.65 and 168,218,131.29 is: 232,145,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,338,657.29 : 426,895,437.65 = 168,218,131.29 : x
  2. Step 2: Convert to fraction form
    309,338,657.29/426,895,437.65 = 168,218,131.29/x
  3. Step 3: Cross multiply
    309,338,657.29x = 426,895,437.65 × 168,218,131.29
  4. Step 4: Simplify right side
    309,338,657.29x = 71,811,552,777,709,704
  5. Step 5: Solve for x
    x = 71,811,552,777,709,704/309,338,657.29
  6. Step 6: Final answer
    x = 232,145,420.84

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.