Home / 279,828,409.08-386,163,719.82-156,077,062.68

Finding the Fourth Proportional to 279,828,409.08, 386,163,719.82 and 156,077,062.68

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Solution

The fourth proportional to 279,828,409.08, 386,163,719.82 and 156,077,062.68 is: 215,386,633.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,828,409.08 : 386,163,719.82 = 156,077,062.68 : x
  2. Step 2: Convert to fraction form
    279,828,409.08/386,163,719.82 = 156,077,062.68/x
  3. Step 3: Cross multiply
    279,828,409.08x = 386,163,719.82 × 156,077,062.68
  4. Step 4: Simplify right side
    279,828,409.08x = 60,271,299,103,088,096
  5. Step 5: Solve for x
    x = 60,271,299,103,088,096/279,828,409.08
  6. Step 6: Final answer
    x = 215,386,633.91

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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.