Home / 18,490,621.30-27,735,931.95-12,444,003.70

Finding the Fourth Proportional to 18,490,621.30, 27,735,931.95 and 12,444,003.70

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Solution

The fourth proportional to 18,490,621.30, 27,735,931.95 and 12,444,003.70 is: 18,666,005.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,490,621.30 : 27,735,931.95 = 12,444,003.70 : x
  2. Step 2: Convert to fraction form
    18,490,621.30/27,735,931.95 = 12,444,003.70/x
  3. Step 3: Cross multiply
    18,490,621.30x = 27,735,931.95 × 12,444,003.70
  4. Step 4: Simplify right side
    18,490,621.30x = 345,146,039,808,748.19
  5. Step 5: Solve for x
    x = 345,146,039,808,748.19/18,490,621.30
  6. Step 6: Final answer
    x = 18,666,005.55

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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.