Home / 418,078,376.58-627,077,042.10-126,948,058.32

Finding the Fourth Proportional to 418,078,376.58, 627,077,042.10 and 126,948,058.32

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Solution

The fourth proportional to 418,078,376.58, 627,077,042.10 and 126,948,058.32 is: 190,409,782.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,078,376.58 : 627,077,042.10 = 126,948,058.32 : x
  2. Step 2: Convert to fraction form
    418,078,376.58/627,077,042.10 = 126,948,058.32/x
  3. Step 3: Cross multiply
    418,078,376.58x = 627,077,042.10 × 126,948,058.32
  4. Step 4: Simplify right side
    418,078,376.58x = 79,606,212,911,643,888
  5. Step 5: Solve for x
    x = 79,606,212,911,643,888/418,078,376.58
  6. Step 6: Final answer
    x = 190,409,782.88

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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.