Home / 13,019,479.08-17,966,848.68-7,218,111.48

Finding the Fourth Proportional to 13,019,479.08, 17,966,848.68 and 7,218,111.48

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Solution

The fourth proportional to 13,019,479.08, 17,966,848.68 and 7,218,111.48 is: 9,960,975.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,019,479.08 : 17,966,848.68 = 7,218,111.48 : x
  2. Step 2: Convert to fraction form
    13,019,479.08/17,966,848.68 = 7,218,111.48/x
  3. Step 3: Cross multiply
    13,019,479.08x = 17,966,848.68 × 7,218,111.48
  4. Step 4: Simplify right side
    13,019,479.08x = 129,686,716,716,530.86
  5. Step 5: Solve for x
    x = 129,686,716,716,530.86/13,019,479.08
  6. Step 6: Final answer
    x = 9,960,975.85

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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.