Home / 80,779,039,674.45-121,168,559,511.67-47,719,157,946.45

Finding the Fourth Proportional to 80,779,039,674.45, 121,168,559,511.67 and 47,719,157,946.45

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Solution

The fourth proportional to 80,779,039,674.45, 121,168,559,511.67 and 47,719,157,946.45 is: 71,578,736,919.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,779,039,674.45 : 121,168,559,511.67 = 47,719,157,946.45 : x
  2. Step 2: Convert to fraction form
    80,779,039,674.45/121,168,559,511.67 = 47,719,157,946.45/x
  3. Step 3: Cross multiply
    80,779,039,674.45x = 121,168,559,511.67 × 47,719,157,946.45
  4. Step 4: Simplify right side
    80,779,039,674.45x = 5,782,061,629,481,206,939,648
  5. Step 5: Solve for x
    x = 5,782,061,629,481,206,939,648/80,779,039,674.45
  6. Step 6: Final answer
    x = 71,578,736,919.67

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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.