Home / 18,129,551.32-27,176,140.18-8,420,979.25

Finding the Fourth Proportional to 18,129,551.32, 27,176,140.18 and 8,420,979.25

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Solution

The fourth proportional to 18,129,551.32, 27,176,140.18 and 8,420,979.25 is: 12,623,021.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,129,551.32 : 27,176,140.18 = 8,420,979.25 : x
  2. Step 2: Convert to fraction form
    18,129,551.32/27,176,140.18 = 8,420,979.25/x
  3. Step 3: Cross multiply
    18,129,551.32x = 27,176,140.18 × 8,420,979.25
  4. Step 4: Simplify right side
    18,129,551.32x = 228,849,712,550,871.25
  5. Step 5: Solve for x
    x = 228,849,712,550,871.25/18,129,551.32
  6. Step 6: Final answer
    x = 12,623,021.30

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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.