Home / 80,779,039,248.45-121,168,558,872.67-47,719,157,520.45

Finding the Fourth Proportional to 80,779,039,248.45, 121,168,558,872.67 and 47,719,157,520.45

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Solution

The fourth proportional to 80,779,039,248.45, 121,168,558,872.67 and 47,719,157,520.45 is: 71,578,736,280.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,779,039,248.45 : 121,168,558,872.67 = 47,719,157,520.45 : x
  2. Step 2: Convert to fraction form
    80,779,039,248.45/121,168,558,872.67 = 47,719,157,520.45/x
  3. Step 3: Cross multiply
    80,779,039,248.45x = 121,168,558,872.67 × 47,719,157,520.45
  4. Step 4: Simplify right side
    80,779,039,248.45x = 5,782,061,547,370,858,938,368
  5. Step 5: Solve for x
    x = 5,782,061,547,370,858,938,368/80,779,039,248.45
  6. Step 6: Final answer
    x = 71,578,736,280.67

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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.