Home / 553,466,761.38-763,793,209.80-330,467,927.76

Finding the Fourth Proportional to 553,466,761.38, 763,793,209.80 and 330,467,927.76

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Solution

The fourth proportional to 553,466,761.38, 763,793,209.80 and 330,467,927.76 is: 456,051,161.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    553,466,761.38 : 763,793,209.80 = 330,467,927.76 : x
  2. Step 2: Convert to fraction form
    553,466,761.38/763,793,209.80 = 330,467,927.76/x
  3. Step 3: Cross multiply
    553,466,761.38x = 763,793,209.80 × 330,467,927.76
  4. Step 4: Simplify right side
    553,466,761.38x = 252,409,159,279,764,896
  5. Step 5: Solve for x
    x = 252,409,159,279,764,896/553,466,761.38
  6. Step 6: Final answer
    x = 456,051,161.32

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.