Home / 171,009,246.30-256,513,869.45-138,760,619.10

Finding the Fourth Proportional to 171,009,246.30, 256,513,869.45 and 138,760,619.10

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Solution

The fourth proportional to 171,009,246.30, 256,513,869.45 and 138,760,619.10 is: 208,140,928.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,009,246.30 : 256,513,869.45 = 138,760,619.10 : x
  2. Step 2: Convert to fraction form
    171,009,246.30/256,513,869.45 = 138,760,619.10/x
  3. Step 3: Cross multiply
    171,009,246.30x = 256,513,869.45 × 138,760,619.10
  4. Step 4: Simplify right side
    171,009,246.30x = 35,594,023,332,618,572
  5. Step 5: Solve for x
    x = 35,594,023,332,618,572/171,009,246.30
  6. Step 6: Final answer
    x = 208,140,928.65

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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.