Home / 1,407,987,124.13-1,943,120,439.20-930,848,506.25

Finding the Fourth Proportional to 1,407,987,124.13, 1,943,120,439.20 and 930,848,506.25

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Solution

The fourth proportional to 1,407,987,124.13, 1,943,120,439.20 and 930,848,506.25 is: 1,284,635,865.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,407,987,124.13 : 1,943,120,439.20 = 930,848,506.25 : x
  2. Step 2: Convert to fraction form
    1,407,987,124.13/1,943,120,439.20 = 930,848,506.25/x
  3. Step 3: Cross multiply
    1,407,987,124.13x = 1,943,120,439.20 × 930,848,506.25
  4. Step 4: Simplify right side
    1,407,987,124.13x = 1,808,750,758,278,793,984
  5. Step 5: Solve for x
    x = 1,808,750,758,278,793,984/1,407,987,124.13
  6. Step 6: Final answer
    x = 1,284,635,865.83

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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.