Home / 558,815,754.57-771,130,988.92-307,906,105.17

Finding the Fourth Proportional to 558,815,754.57, 771,130,988.92 and 307,906,105.17

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Solution

The fourth proportional to 558,815,754.57, 771,130,988.92 and 307,906,105.17 is: 424,891,276.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    558,815,754.57 : 771,130,988.92 = 307,906,105.17 : x
  2. Step 2: Convert to fraction form
    558,815,754.57/771,130,988.92 = 307,906,105.17/x
  3. Step 3: Cross multiply
    558,815,754.57x = 771,130,988.92 × 307,906,105.17
  4. Step 4: Simplify right side
    558,815,754.57x = 237,435,939,374,247,616
  5. Step 5: Solve for x
    x = 237,435,939,374,247,616/558,815,754.57
  6. Step 6: Final answer
    x = 424,891,276.66

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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.