Home / 8,180,452,281.20-12,270,678,421.80-7,761,220,127.60

Finding the Fourth Proportional to 8,180,452,281.20, 12,270,678,421.80 and 7,761,220,127.60

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Solution

The fourth proportional to 8,180,452,281.20, 12,270,678,421.80 and 7,761,220,127.60 is: 11,641,830,191.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,180,452,281.20 : 12,270,678,421.80 = 7,761,220,127.60 : x
  2. Step 2: Convert to fraction form
    8,180,452,281.20/12,270,678,421.80 = 7,761,220,127.60/x
  3. Step 3: Cross multiply
    8,180,452,281.20x = 12,270,678,421.80 × 7,761,220,127.60
  4. Step 4: Simplify right side
    8,180,452,281.20x = 95,235,436,346,581,155,840
  5. Step 5: Solve for x
    x = 95,235,436,346,581,155,840/8,180,452,281.20
  6. Step 6: Final answer
    x = 11,641,830,191.40

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Double scale
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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.