Home / 18,684,077.40-28,026,116.10-11,472,226.20

Finding the Fourth Proportional to 18,684,077.40, 28,026,116.10 and 11,472,226.20

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Solution

The fourth proportional to 18,684,077.40, 28,026,116.10 and 11,472,226.20 is: 17,208,339.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,684,077.40 : 28,026,116.10 = 11,472,226.20 : x
  2. Step 2: Convert to fraction form
    18,684,077.40/28,026,116.10 = 11,472,226.20/x
  3. Step 3: Cross multiply
    18,684,077.40x = 28,026,116.10 × 11,472,226.20
  4. Step 4: Simplify right side
    18,684,077.40x = 321,521,943,406,661.81
  5. Step 5: Solve for x
    x = 321,521,943,406,661.81/18,684,077.40
  6. Step 6: Final answer
    x = 17,208,339.30

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Double scale
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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.