Home / 281,360,387.61-388,279,614.69-155,914,678.98

Finding the Fourth Proportional to 281,360,387.61, 388,279,614.69 and 155,914,678.98

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Solution

The fourth proportional to 281,360,387.61, 388,279,614.69 and 155,914,678.98 is: 215,163,520.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,360,387.61 : 388,279,614.69 = 155,914,678.98 : x
  2. Step 2: Convert to fraction form
    281,360,387.61/388,279,614.69 = 155,914,678.98/x
  3. Step 3: Cross multiply
    281,360,387.61x = 388,279,614.69 × 155,914,678.98
  4. Step 4: Simplify right side
    281,360,387.61x = 60,538,491,478,869,440
  5. Step 5: Solve for x
    x = 60,538,491,478,869,440/281,360,387.61
  6. Step 6: Final answer
    x = 215,163,520.33

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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.