Home / 1,368,390,168.39-1,888,451,753.86-765,524,827.91

Finding the Fourth Proportional to 1,368,390,168.39, 1,888,451,753.86 and 765,524,827.91

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Solution

The fourth proportional to 1,368,390,168.39, 1,888,451,753.86 and 765,524,827.91 is: 1,056,465,281.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,368,390,168.39 : 1,888,451,753.86 = 765,524,827.91 : x
  2. Step 2: Convert to fraction form
    1,368,390,168.39/1,888,451,753.86 = 765,524,827.91/x
  3. Step 3: Cross multiply
    1,368,390,168.39x = 1,888,451,753.86 × 765,524,827.91
  4. Step 4: Simplify right side
    1,368,390,168.39x = 1,445,656,703,888,147,200
  5. Step 5: Solve for x
    x = 1,445,656,703,888,147,200/1,368,390,168.39
  6. Step 6: Final answer
    x = 1,056,465,281.09

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.