Home / 622,758,920.80-934,138,381.20-393,435,349.60

Finding the Fourth Proportional to 622,758,920.80, 934,138,381.20 and 393,435,349.60

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Solution

The fourth proportional to 622,758,920.80, 934,138,381.20 and 393,435,349.60 is: 590,153,024.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,758,920.80 : 934,138,381.20 = 393,435,349.60 : x
  2. Step 2: Convert to fraction form
    622,758,920.80/934,138,381.20 = 393,435,349.60/x
  3. Step 3: Cross multiply
    622,758,920.80x = 934,138,381.20 × 393,435,349.60
  4. Step 4: Simplify right side
    622,758,920.80x = 367,523,060,582,200,128
  5. Step 5: Solve for x
    x = 367,523,060,582,200,128/622,758,920.80
  6. Step 6: Final answer
    x = 590,153,024.40

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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.