Home / 6,121,445,652.80-9,182,168,479.20-1,981,307,686.40

Finding the Fourth Proportional to 6,121,445,652.80, 9,182,168,479.20 and 1,981,307,686.40

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Solution

The fourth proportional to 6,121,445,652.80, 9,182,168,479.20 and 1,981,307,686.40 is: 2,971,961,529.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,121,445,652.80 : 9,182,168,479.20 = 1,981,307,686.40 : x
  2. Step 2: Convert to fraction form
    6,121,445,652.80/9,182,168,479.20 = 1,981,307,686.40/x
  3. Step 3: Cross multiply
    6,121,445,652.80x = 9,182,168,479.20 × 1,981,307,686.40
  4. Step 4: Simplify right side
    6,121,445,652.80x = 18,192,700,985,658,761,216
  5. Step 5: Solve for x
    x = 18,192,700,985,658,761,216/6,121,445,652.80
  6. Step 6: Final answer
    x = 2,971,961,529.60

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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.