Home / 728,161,901.82-1,005,136,689.42-477,282,461.18

Finding the Fourth Proportional to 728,161,901.82, 1,005,136,689.42 and 477,282,461.18

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Solution

The fourth proportional to 728,161,901.82, 1,005,136,689.42 and 477,282,461.18 is: 658,828,911.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,161,901.82 : 1,005,136,689.42 = 477,282,461.18 : x
  2. Step 2: Convert to fraction form
    728,161,901.82/1,005,136,689.42 = 477,282,461.18/x
  3. Step 3: Cross multiply
    728,161,901.82x = 1,005,136,689.42 × 477,282,461.18
  4. Step 4: Simplify right side
    728,161,901.82x = 479,734,112,948,694,848
  5. Step 5: Solve for x
    x = 479,734,112,948,694,848/728,161,901.82
  6. Step 6: Final answer
    x = 658,828,911.19

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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.