Home / 278,328,574.90-417,492,862.35-169,489,458.10

Finding the Fourth Proportional to 278,328,574.90, 417,492,862.35 and 169,489,458.10

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Solution

The fourth proportional to 278,328,574.90, 417,492,862.35 and 169,489,458.10 is: 254,234,187.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,328,574.90 : 417,492,862.35 = 169,489,458.10 : x
  2. Step 2: Convert to fraction form
    278,328,574.90/417,492,862.35 = 169,489,458.10/x
  3. Step 3: Cross multiply
    278,328,574.90x = 417,492,862.35 × 169,489,458.10
  4. Step 4: Simplify right side
    278,328,574.90x = 70,760,639,000,319,392
  5. Step 5: Solve for x
    x = 70,760,639,000,319,392/278,328,574.90
  6. Step 6: Final answer
    x = 254,234,187.15

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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.