Home / 472,392,433.30-708,588,649.95-443,670,999.70

Finding the Fourth Proportional to 472,392,433.30, 708,588,649.95 and 443,670,999.70

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Solution

The fourth proportional to 472,392,433.30, 708,588,649.95 and 443,670,999.70 is: 665,506,499.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,433.30 : 708,588,649.95 = 443,670,999.70 : x
  2. Step 2: Convert to fraction form
    472,392,433.30/708,588,649.95 = 443,670,999.70/x
  3. Step 3: Cross multiply
    472,392,433.30x = 708,588,649.95 × 443,670,999.70
  4. Step 4: Simplify right side
    472,392,433.30x = 314,380,234,699,389,888
  5. Step 5: Solve for x
    x = 314,380,234,699,389,888/472,392,433.30
  6. Step 6: Final answer
    x = 665,506,499.55

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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.