Home / 1,225,863,468.52-1,691,727,315.06-668,982,387.40

Finding the Fourth Proportional to 1,225,863,468.52, 1,691,727,315.06 and 668,982,387.40

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Solution

The fourth proportional to 1,225,863,468.52, 1,691,727,315.06 and 668,982,387.40 is: 923,215,192.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,225,863,468.52 : 1,691,727,315.06 = 668,982,387.40 : x
  2. Step 2: Convert to fraction form
    1,225,863,468.52/1,691,727,315.06 = 668,982,387.40/x
  3. Step 3: Cross multiply
    1,225,863,468.52x = 1,691,727,315.06 × 668,982,387.40
  4. Step 4: Simplify right side
    1,225,863,468.52x = 1,131,735,778,058,630,656
  5. Step 5: Solve for x
    x = 1,131,735,778,058,630,656/1,225,863,468.52
  6. Step 6: Final answer
    x = 923,215,192.49

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Double scale
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1.5x scale

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.