Home / 426,046,277.70-639,069,416.55-280,927,455.30

Finding the Fourth Proportional to 426,046,277.70, 639,069,416.55 and 280,927,455.30

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Solution

The fourth proportional to 426,046,277.70, 639,069,416.55 and 280,927,455.30 is: 421,391,182.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,046,277.70 : 639,069,416.55 = 280,927,455.30 : x
  2. Step 2: Convert to fraction form
    426,046,277.70/639,069,416.55 = 280,927,455.30/x
  3. Step 3: Cross multiply
    426,046,277.70x = 639,069,416.55 × 280,927,455.30
  4. Step 4: Simplify right side
    426,046,277.70x = 179,532,144,951,447,200
  5. Step 5: Solve for x
    x = 179,532,144,951,447,200/426,046,277.70
  6. Step 6: Final answer
    x = 421,391,182.95

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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.