Home / 80,779,039,679.70-121,168,559,519.55-47,719,157,951.70

Finding the Fourth Proportional to 80,779,039,679.70, 121,168,559,519.55 and 47,719,157,951.70

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Solution

The fourth proportional to 80,779,039,679.70, 121,168,559,519.55 and 47,719,157,951.70 is: 71,578,736,927.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,779,039,679.70 : 121,168,559,519.55 = 47,719,157,951.70 : x
  2. Step 2: Convert to fraction form
    80,779,039,679.70/121,168,559,519.55 = 47,719,157,951.70/x
  3. Step 3: Cross multiply
    80,779,039,679.70x = 121,168,559,519.55 × 47,719,157,951.70
  4. Step 4: Simplify right side
    80,779,039,679.70x = 5,782,061,630,493,369,040,896
  5. Step 5: Solve for x
    x = 5,782,061,630,493,369,040,896/80,779,039,679.70
  6. Step 6: Final answer
    x = 71,578,736,927.55

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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.