Home / 281,604,476.40-388,607,241.24-156,155,979.12

Finding the Fourth Proportional to 281,604,476.40, 388,607,241.24 and 156,155,979.12

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Solution

The fourth proportional to 281,604,476.40, 388,607,241.24 and 156,155,979.12 is: 215,491,404.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,604,476.40 : 388,607,241.24 = 156,155,979.12 : x
  2. Step 2: Convert to fraction form
    281,604,476.40/388,607,241.24 = 156,155,979.12/x
  3. Step 3: Cross multiply
    281,604,476.40x = 388,607,241.24 × 156,155,979.12
  4. Step 4: Simplify right side
    281,604,476.40x = 60,683,344,248,954,248
  5. Step 5: Solve for x
    x = 60,683,344,248,954,248/281,604,476.40
  6. Step 6: Final answer
    x = 215,491,404.91

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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.