Home / 282,753,915.89-390,203,994.87-155,609,233.11

Finding the Fourth Proportional to 282,753,915.89, 390,203,994.87 and 155,609,233.11

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Solution

The fourth proportional to 282,753,915.89, 390,203,994.87 and 155,609,233.11 is: 214,742,717.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,753,915.89 : 390,203,994.87 = 155,609,233.11 : x
  2. Step 2: Convert to fraction form
    282,753,915.89/390,203,994.87 = 155,609,233.11/x
  3. Step 3: Cross multiply
    282,753,915.89x = 390,203,994.87 × 155,609,233.11
  4. Step 4: Simplify right side
    282,753,915.89x = 60,719,344,398,179,080
  5. Step 5: Solve for x
    x = 60,719,344,398,179,080/282,753,915.89
  6. Step 6: Final answer
    x = 214,742,717.91

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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.