Home / 418,085,499.84-627,087,703.68-126,955,144.32

Finding the Fourth Proportional to 418,085,499.84, 627,087,703.68 and 126,955,144.32

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Solution

The fourth proportional to 418,085,499.84, 627,087,703.68 and 126,955,144.32 is: 190,420,404.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,085,499.84 : 627,087,703.68 = 126,955,144.32 : x
  2. Step 2: Convert to fraction form
    418,085,499.84/627,087,703.68 = 126,955,144.32/x
  3. Step 3: Cross multiply
    418,085,499.84x = 627,087,703.68 × 126,955,144.32
  4. Step 4: Simplify right side
    418,085,499.84x = 79,612,009,921,991,776
  5. Step 5: Solve for x
    x = 79,612,009,921,991,776/418,085,499.84
  6. Step 6: Final answer
    x = 190,420,404.33

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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.