Home / 80,779,039,705.20-121,168,559,557.80-47,719,157,977.20

Finding the Fourth Proportional to 80,779,039,705.20, 121,168,559,557.80 and 47,719,157,977.20

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Solution

The fourth proportional to 80,779,039,705.20, 121,168,559,557.80 and 47,719,157,977.20 is: 71,578,736,965.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,779,039,705.20 : 121,168,559,557.80 = 47,719,157,977.20 : x
  2. Step 2: Convert to fraction form
    80,779,039,705.20/121,168,559,557.80 = 47,719,157,977.20/x
  3. Step 3: Cross multiply
    80,779,039,705.20x = 121,168,559,557.80 × 47,719,157,977.20
  4. Step 4: Simplify right side
    80,779,039,705.20x = 5,782,061,635,408,425,385,984
  5. Step 5: Solve for x
    x = 5,782,061,635,408,425,385,984/80,779,039,705.20
  6. Step 6: Final answer
    x = 71,578,736,965.80

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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.