Home / 418,134,645.72-627,161,100.84-127,004,296.68

Finding the Fourth Proportional to 418,134,645.72, 627,161,100.84 and 127,004,296.68

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Solution

The fourth proportional to 418,134,645.72, 627,161,100.84 and 127,004,296.68 is: 190,494,031.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,134,645.72 : 627,161,100.84 = 127,004,296.68 : x
  2. Step 2: Convert to fraction form
    418,134,645.72/627,161,100.84 = 127,004,296.68/x
  3. Step 3: Cross multiply
    418,134,645.72x = 627,161,100.84 × 127,004,296.68
  4. Step 4: Simplify right side
    418,134,645.72x = 79,652,154,517,238,768
  5. Step 5: Solve for x
    x = 79,652,154,517,238,768/418,134,645.72
  6. Step 6: Final answer
    x = 190,494,031.84

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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.