Home / 13,000,981.10-19,503,804.45-5,428,712.30

Finding the Fourth Proportional to 13,000,981.10, 19,503,804.45 and 5,428,712.30

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Solution

The fourth proportional to 13,000,981.10, 19,503,804.45 and 5,428,712.30 is: 8,144,042.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,000,981.10 : 19,503,804.45 = 5,428,712.30 : x
  2. Step 2: Convert to fraction form
    13,000,981.10/19,503,804.45 = 5,428,712.30/x
  3. Step 3: Cross multiply
    13,000,981.10x = 19,503,804.45 × 5,428,712.30
  4. Step 4: Simplify right side
    13,000,981.10x = 105,880,543,114,509.73
  5. Step 5: Solve for x
    x = 105,880,543,114,509.73/13,000,981.10
  6. Step 6: Final answer
    x = 8,144,042.54

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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.