Home / 12,715,900.74-17,547,409.89-7,209,646.02

Finding the Fourth Proportional to 12,715,900.74, 17,547,409.89 and 7,209,646.02

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Solution

The fourth proportional to 12,715,900.74, 17,547,409.89 and 7,209,646.02 is: 9,949,009.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,715,900.74 : 17,547,409.89 = 7,209,646.02 : x
  2. Step 2: Convert to fraction form
    12,715,900.74/17,547,409.89 = 7,209,646.02/x
  3. Step 3: Cross multiply
    12,715,900.74x = 17,547,409.89 × 7,209,646.02
  4. Step 4: Simplify right side
    12,715,900.74x = 126,510,613,874,747.14
  5. Step 5: Solve for x
    x = 126,510,613,874,747.14/12,715,900.74
  6. Step 6: Final answer
    x = 9,949,009.23

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.