Home / 6,438,305.20-9,658,753.80-1,889,345.20

Finding the Fourth Proportional to 6,438,305.20, 9,658,753.80 and 1,889,345.20

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Solution

The fourth proportional to 6,438,305.20, 9,658,753.80 and 1,889,345.20 is: 2,834,398.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,438,305.20 : 9,658,753.80 = 1,889,345.20 : x
  2. Step 2: Convert to fraction form
    6,438,305.20/9,658,753.80 = 1,889,345.20/x
  3. Step 3: Cross multiply
    6,438,305.20x = 9,658,753.80 × 1,889,345.20
  4. Step 4: Simplify right side
    6,438,305.20x = 18,248,720,130,011.76
  5. Step 5: Solve for x
    x = 18,248,720,130,011.76/6,438,305.20
  6. Step 6: Final answer
    x = 2,834,398.12

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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.