Home / 347,758,756.80-521,638,135.20-261,027,585.60

Finding the Fourth Proportional to 347,758,756.80, 521,638,135.20 and 261,027,585.60

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Solution

The fourth proportional to 347,758,756.80, 521,638,135.20 and 261,027,585.60 is: 391,541,378.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,758,756.80 : 521,638,135.20 = 261,027,585.60 : x
  2. Step 2: Convert to fraction form
    347,758,756.80/521,638,135.20 = 261,027,585.60/x
  3. Step 3: Cross multiply
    347,758,756.80x = 521,638,135.20 × 261,027,585.60
  4. Step 4: Simplify right side
    347,758,756.80x = 136,161,942,988,142,368
  5. Step 5: Solve for x
    x = 136,161,942,988,142,368/347,758,756.80
  6. Step 6: Final answer
    x = 391,541,378.40

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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.