Home / 172,465,422.30-258,698,133.45-155,459,310.30

Finding the Fourth Proportional to 172,465,422.30, 258,698,133.45 and 155,459,310.30

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Solution

The fourth proportional to 172,465,422.30, 258,698,133.45 and 155,459,310.30 is: 233,188,965.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,465,422.30 : 258,698,133.45 = 155,459,310.30 : x
  2. Step 2: Convert to fraction form
    172,465,422.30/258,698,133.45 = 155,459,310.30/x
  3. Step 3: Cross multiply
    172,465,422.30x = 258,698,133.45 × 155,459,310.30
  4. Step 4: Simplify right side
    172,465,422.30x = 40,217,033,402,034,360
  5. Step 5: Solve for x
    x = 40,217,033,402,034,360/172,465,422.30
  6. Step 6: Final answer
    x = 233,188,965.45

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Double scale
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Similar ratio
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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.