Home / 13,122,087.76-18,108,492.36-7,320,870.76

Finding the Fourth Proportional to 13,122,087.76, 18,108,492.36 and 7,320,870.76

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Solution

The fourth proportional to 13,122,087.76, 18,108,492.36 and 7,320,870.76 is: 10,102,807.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,122,087.76 : 18,108,492.36 = 7,320,870.76 : x
  2. Step 2: Convert to fraction form
    13,122,087.76/18,108,492.36 = 7,320,870.76/x
  3. Step 3: Cross multiply
    13,122,087.76x = 18,108,492.36 × 7,320,870.76
  4. Step 4: Simplify right side
    13,122,087.76x = 132,569,932,226,007.39
  5. Step 5: Solve for x
    x = 132,569,932,226,007.39/13,122,087.76
  6. Step 6: Final answer
    x = 10,102,807.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.