Home / 999,147,032.72-1,378,839,228.90-547,017,456.50

Finding the Fourth Proportional to 999,147,032.72, 1,378,839,228.90 and 547,017,456.50

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Solution

The fourth proportional to 999,147,032.72, 1,378,839,228.90 and 547,017,456.50 is: 754,893,026.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    999,147,032.72 : 1,378,839,228.90 = 547,017,456.50 : x
  2. Step 2: Convert to fraction form
    999,147,032.72/1,378,839,228.90 = 547,017,456.50/x
  3. Step 3: Cross multiply
    999,147,032.72x = 1,378,839,228.90 × 547,017,456.50
  4. Step 4: Simplify right side
    999,147,032.72x = 754,249,127,915,299,328
  5. Step 5: Solve for x
    x = 754,249,127,915,299,328/999,147,032.72
  6. Step 6: Final answer
    x = 754,893,026.97

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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.