Home / 210,438,000.60-315,657,000.90-172,646,640.60

Finding the Fourth Proportional to 210,438,000.60, 315,657,000.90 and 172,646,640.60

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Solution

The fourth proportional to 210,438,000.60, 315,657,000.90 and 172,646,640.60 is: 258,969,960.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,438,000.60 : 315,657,000.90 = 172,646,640.60 : x
  2. Step 2: Convert to fraction form
    210,438,000.60/315,657,000.90 = 172,646,640.60/x
  3. Step 3: Cross multiply
    210,438,000.60x = 315,657,000.90 × 172,646,640.60
  4. Step 4: Simplify right side
    210,438,000.60x = 54,497,120,787,256,168
  5. Step 5: Solve for x
    x = 54,497,120,787,256,168/210,438,000.60
  6. Step 6: Final answer
    x = 258,969,960.90

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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.