Home / 379,847,384.40-569,771,076.60-318,625,381.20

Finding the Fourth Proportional to 379,847,384.40, 569,771,076.60 and 318,625,381.20

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Solution

The fourth proportional to 379,847,384.40, 569,771,076.60 and 318,625,381.20 is: 477,938,071.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,847,384.40 : 569,771,076.60 = 318,625,381.20 : x
  2. Step 2: Convert to fraction form
    379,847,384.40/569,771,076.60 = 318,625,381.20/x
  3. Step 3: Cross multiply
    379,847,384.40x = 569,771,076.60 × 318,625,381.20
  4. Step 4: Simplify right side
    379,847,384.40x = 181,543,526,478,409,408
  5. Step 5: Solve for x
    x = 181,543,526,478,409,408/379,847,384.40
  6. Step 6: Final answer
    x = 477,938,071.80

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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.