Home / 1,381,607,478.71-2,072,106,065.95-398,820,460.85

Finding the Fourth Proportional to 1,381,607,478.71, 2,072,106,065.95 and 398,820,460.85

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Solution

The fourth proportional to 1,381,607,478.71, 2,072,106,065.95 and 398,820,460.85 is: 598,142,604.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,381,607,478.71 : 2,072,106,065.95 = 398,820,460.85 : x
  2. Step 2: Convert to fraction form
    1,381,607,478.71/2,072,106,065.95 = 398,820,460.85/x
  3. Step 3: Cross multiply
    1,381,607,478.71x = 2,072,106,065.95 × 398,820,460.85
  4. Step 4: Simplify right side
    1,381,607,478.71x = 826,398,296,147,079,296
  5. Step 5: Solve for x
    x = 826,398,296,147,079,296/1,381,607,478.71
  6. Step 6: Final answer
    x = 598,142,604.82

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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.