Home / 381,988,583.56-573,124,752.36-265,342,478.20

Finding the Fourth Proportional to 381,988,583.56, 573,124,752.36 and 265,342,478.20

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Solution

The fourth proportional to 381,988,583.56, 573,124,752.36 and 265,342,478.20 is: 398,112,269.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,988,583.56 : 573,124,752.36 = 265,342,478.20 : x
  2. Step 2: Convert to fraction form
    381,988,583.56/573,124,752.36 = 265,342,478.20/x
  3. Step 3: Cross multiply
    381,988,583.56x = 573,124,752.36 × 265,342,478.20
  4. Step 4: Simplify right side
    381,988,583.56x = 152,074,342,108,963,680
  5. Step 5: Solve for x
    x = 152,074,342,108,963,680/381,988,583.56
  6. Step 6: Final answer
    x = 398,112,269.98

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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.