Home / 21,302,405.40-31,953,608.10-9,944,002.20

Finding the Fourth Proportional to 21,302,405.40, 31,953,608.10 and 9,944,002.20

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Solution

The fourth proportional to 21,302,405.40, 31,953,608.10 and 9,944,002.20 is: 14,916,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,302,405.40 : 31,953,608.10 = 9,944,002.20 : x
  2. Step 2: Convert to fraction form
    21,302,405.40/31,953,608.10 = 9,944,002.20/x
  3. Step 3: Cross multiply
    21,302,405.40x = 31,953,608.10 × 9,944,002.20
  4. Step 4: Simplify right side
    21,302,405.40x = 317,746,749,244,337.81
  5. Step 5: Solve for x
    x = 317,746,749,244,337.81/21,302,405.40
  6. Step 6: Final answer
    x = 14,916,003.30

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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.