Home / 878,414,561.98-1,317,575,437.06-288,127,046.87

Finding the Fourth Proportional to 878,414,561.98, 1,317,575,437.06 and 288,127,046.87

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Solution

The fourth proportional to 878,414,561.98, 1,317,575,437.06 and 288,127,046.87 is: 432,175,348.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    878,414,561.98 : 1,317,575,437.06 = 288,127,046.87 : x
  2. Step 2: Convert to fraction form
    878,414,561.98/1,317,575,437.06 = 288,127,046.87/x
  3. Step 3: Cross multiply
    878,414,561.98x = 1,317,575,437.06 × 288,127,046.87
  4. Step 4: Simplify right side
    878,414,561.98x = 379,629,119,708,547,328
  5. Step 5: Solve for x
    x = 379,629,119,708,547,328/878,414,561.98
  6. Step 6: Final answer
    x = 432,175,348.79

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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.