Home / 28,381,574.90-42,572,362.35-12,456,326.90

Finding the Fourth Proportional to 28,381,574.90, 42,572,362.35 and 12,456,326.90

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Solution

The fourth proportional to 28,381,574.90, 42,572,362.35 and 12,456,326.90 is: 18,684,490.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,381,574.90 : 42,572,362.35 = 12,456,326.90 : x
  2. Step 2: Convert to fraction form
    28,381,574.90/42,572,362.35 = 12,456,326.90/x
  3. Step 3: Cross multiply
    28,381,574.90x = 42,572,362.35 × 12,456,326.90
  4. Step 4: Simplify right side
    28,381,574.90x = 530,295,262,336,852.25
  5. Step 5: Solve for x
    x = 530,295,262,336,852.25/28,381,574.90
  6. Step 6: Final answer
    x = 18,684,490.35

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Similar ratio
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1.5x scale

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.