Home / 19,360,055.30-29,040,082.95-12,989,956.10

Finding the Fourth Proportional to 19,360,055.30, 29,040,082.95 and 12,989,956.10

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Solution

The fourth proportional to 19,360,055.30, 29,040,082.95 and 12,989,956.10 is: 19,484,934.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,360,055.30 : 29,040,082.95 = 12,989,956.10 : x
  2. Step 2: Convert to fraction form
    19,360,055.30/29,040,082.95 = 12,989,956.10/x
  3. Step 3: Cross multiply
    19,360,055.30x = 29,040,082.95 × 12,989,956.10
  4. Step 4: Simplify right side
    19,360,055.30x = 377,229,402,660,858.50
  5. Step 5: Solve for x
    x = 377,229,402,660,858.50/19,360,055.30
  6. Step 6: Final answer
    x = 19,484,934.15

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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.