Home / 8,390,325,810.60-12,585,488,715.90-5,288,410,981.80

Finding the Fourth Proportional to 8,390,325,810.60, 12,585,488,715.90 and 5,288,410,981.80

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Solution

The fourth proportional to 8,390,325,810.60, 12,585,488,715.90 and 5,288,410,981.80 is: 7,932,616,472.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,390,325,810.60 : 12,585,488,715.90 = 5,288,410,981.80 : x
  2. Step 2: Convert to fraction form
    8,390,325,810.60/12,585,488,715.90 = 5,288,410,981.80/x
  3. Step 3: Cross multiply
    8,390,325,810.60x = 12,585,488,715.90 × 5,288,410,981.80
  4. Step 4: Simplify right side
    8,390,325,810.60x = 66,557,236,736,485,539,840
  5. Step 5: Solve for x
    x = 66,557,236,736,485,539,840/8,390,325,810.60
  6. Step 6: Final answer
    x = 7,932,616,472.70

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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.