Home / 21,178,538.55-31,781,244.12-9,048,093.36

Finding the Fourth Proportional to 21,178,538.55, 31,781,244.12 and 9,048,093.36

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Solution

The fourth proportional to 21,178,538.55, 31,781,244.12 and 9,048,093.36 is: 13,577,880.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,178,538.55 : 31,781,244.12 = 9,048,093.36 : x
  2. Step 2: Convert to fraction form
    21,178,538.55/31,781,244.12 = 9,048,093.36/x
  3. Step 3: Cross multiply
    21,178,538.55x = 31,781,244.12 × 9,048,093.36
  4. Step 4: Simplify right side
    21,178,538.55x = 287,559,663,894,711.06
  5. Step 5: Solve for x
    x = 287,559,663,894,711.06/21,178,538.55
  6. Step 6: Final answer
    x = 13,577,880.42

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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.