Home / 379,847,403.90-569,771,105.85-318,625,400.70

Finding the Fourth Proportional to 379,847,403.90, 569,771,105.85 and 318,625,400.70

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Solution

The fourth proportional to 379,847,403.90, 569,771,105.85 and 318,625,400.70 is: 477,938,101.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,847,403.90 : 569,771,105.85 = 318,625,400.70 : x
  2. Step 2: Convert to fraction form
    379,847,403.90/569,771,105.85 = 318,625,400.70/x
  3. Step 3: Cross multiply
    379,847,403.90x = 569,771,105.85 × 318,625,400.70
  4. Step 4: Simplify right side
    379,847,403.90x = 181,543,546,908,738,368
  5. Step 5: Solve for x
    x = 181,543,546,908,738,368/379,847,403.90
  6. Step 6: Final answer
    x = 477,938,101.05

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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.