Home / 347,736,974.40-521,605,461.60-342,635,140.80

Finding the Fourth Proportional to 347,736,974.40, 521,605,461.60 and 342,635,140.80

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Solution

The fourth proportional to 347,736,974.40, 521,605,461.60 and 342,635,140.80 is: 513,952,711.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,736,974.40 : 521,605,461.60 = 342,635,140.80 : x
  2. Step 2: Convert to fraction form
    347,736,974.40/521,605,461.60 = 342,635,140.80/x
  3. Step 3: Cross multiply
    347,736,974.40x = 521,605,461.60 × 342,635,140.80
  4. Step 4: Simplify right side
    347,736,974.40x = 178,720,360,777,364,992
  5. Step 5: Solve for x
    x = 178,720,360,777,364,992/347,736,974.40
  6. Step 6: Final answer
    x = 513,952,711.20

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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.