Home / 278,832,281.34-384,786,424.77-153,381,782.82

Finding the Fourth Proportional to 278,832,281.34, 384,786,424.77 and 153,381,782.82

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Solution

The fourth proportional to 278,832,281.34, 384,786,424.77 and 153,381,782.82 is: 211,665,692.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,832,281.34 : 384,786,424.77 = 153,381,782.82 : x
  2. Step 2: Convert to fraction form
    278,832,281.34/384,786,424.77 = 153,381,782.82/x
  3. Step 3: Cross multiply
    278,832,281.34x = 384,786,424.77 × 153,381,782.82
  4. Step 4: Simplify right side
    278,832,281.34x = 59,019,227,836,156,400
  5. Step 5: Solve for x
    x = 59,019,227,836,156,400/278,832,281.34
  6. Step 6: Final answer
    x = 211,665,692.20

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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.