Home / 80,779,032,078.80-121,168,548,118.20-38,834,307,136.40

Finding the Fourth Proportional to 80,779,032,078.80, 121,168,548,118.20 and 38,834,307,136.40

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Solution

The fourth proportional to 80,779,032,078.80, 121,168,548,118.20 and 38,834,307,136.40 is: 58,251,460,704.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,779,032,078.80 : 121,168,548,118.20 = 38,834,307,136.40 : x
  2. Step 2: Convert to fraction form
    80,779,032,078.80/121,168,548,118.20 = 38,834,307,136.40/x
  3. Step 3: Cross multiply
    80,779,032,078.80x = 121,168,548,118.20 × 38,834,307,136.40
  4. Step 4: Simplify right side
    80,779,032,078.80x = 4,705,496,612,893,840,900,096
  5. Step 5: Solve for x
    x = 4,705,496,612,893,840,900,096/80,779,032,078.80
  6. Step 6: Final answer
    x = 58,251,460,704.60

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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.