Home / 28,162,457.31-42,248,455.04-9,713,392.78

Finding the Fourth Proportional to 28,162,457.31, 42,248,455.04 and 9,713,392.78

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Solution

The fourth proportional to 28,162,457.31, 42,248,455.04 and 9,713,392.78 is: 14,571,734.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,162,457.31 : 42,248,455.04 = 9,713,392.78 : x
  2. Step 2: Convert to fraction form
    28,162,457.31/42,248,455.04 = 9,713,392.78/x
  3. Step 3: Cross multiply
    28,162,457.31x = 42,248,455.04 × 9,713,392.78
  4. Step 4: Simplify right side
    28,162,457.31x = 410,375,838,151,690.56
  5. Step 5: Solve for x
    x = 410,375,838,151,690.56/28,162,457.31
  6. Step 6: Final answer
    x = 14,571,734.05

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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.