Home / 786,811,862.40-1,180,217,793.60-557,040,393.60

Finding the Fourth Proportional to 786,811,862.40, 1,180,217,793.60 and 557,040,393.60

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Solution

The fourth proportional to 786,811,862.40, 1,180,217,793.60 and 557,040,393.60 is: 835,560,590.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    786,811,862.40 : 1,180,217,793.60 = 557,040,393.60 : x
  2. Step 2: Convert to fraction form
    786,811,862.40/1,180,217,793.60 = 557,040,393.60/x
  3. Step 3: Cross multiply
    786,811,862.40x = 1,180,217,793.60 × 557,040,393.60
  4. Step 4: Simplify right side
    786,811,862.40x = 657,428,984,280,667,520
  5. Step 5: Solve for x
    x = 657,428,984,280,667,520/786,811,862.40
  6. Step 6: Final answer
    x = 835,560,590.40

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Double scale
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Similar ratio
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1.5x scale

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.