Home / 280,201,540.64-386,678,875.92-156,446,646.08

Finding the Fourth Proportional to 280,201,540.64, 386,678,875.92 and 156,446,646.08

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Solution

The fourth proportional to 280,201,540.64, 386,678,875.92 and 156,446,646.08 is: 215,896,790.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,201,540.64 : 386,678,875.92 = 156,446,646.08 : x
  2. Step 2: Convert to fraction form
    280,201,540.64/386,678,875.92 = 156,446,646.08/x
  3. Step 3: Cross multiply
    280,201,540.64x = 386,678,875.92 × 156,446,646.08
  4. Step 4: Simplify right side
    280,201,540.64x = 60,494,613,247,668,480
  5. Step 5: Solve for x
    x = 60,494,613,247,668,480/280,201,540.64
  6. Step 6: Final answer
    x = 215,896,790.25

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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.