Home / 12,383,145.10-18,574,717.65-6,643,582.30

Finding the Fourth Proportional to 12,383,145.10, 18,574,717.65 and 6,643,582.30

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Solution

The fourth proportional to 12,383,145.10, 18,574,717.65 and 6,643,582.30 is: 9,965,373.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,383,145.10 : 18,574,717.65 = 6,643,582.30 : x
  2. Step 2: Convert to fraction form
    12,383,145.10/18,574,717.65 = 6,643,582.30/x
  3. Step 3: Cross multiply
    12,383,145.10x = 18,574,717.65 × 6,643,582.30
  4. Step 4: Simplify right side
    12,383,145.10x = 123,402,665,407,037.58
  5. Step 5: Solve for x
    x = 123,402,665,407,037.58/12,383,145.10
  6. Step 6: Final answer
    x = 9,965,373.45

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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.