Home / 622,758,909.30-934,138,363.95-393,435,338.10

Finding the Fourth Proportional to 622,758,909.30, 934,138,363.95 and 393,435,338.10

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Solution

The fourth proportional to 622,758,909.30, 934,138,363.95 and 393,435,338.10 is: 590,153,007.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    622,758,909.30 : 934,138,363.95 = 393,435,338.10 : x
  2. Step 2: Convert to fraction form
    622,758,909.30/934,138,363.95 = 393,435,338.10/x
  3. Step 3: Cross multiply
    622,758,909.30x = 934,138,363.95 × 393,435,338.10
  4. Step 4: Simplify right side
    622,758,909.30x = 367,523,043,052,849,152
  5. Step 5: Solve for x
    x = 367,523,043,052,849,152/622,758,909.30
  6. Step 6: Final answer
    x = 590,153,007.15

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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.