Home / 9,703,178.10-13,390,479.18-5,352,447.78

Finding the Fourth Proportional to 9,703,178.10, 13,390,479.18 and 5,352,447.78

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Solution

The fourth proportional to 9,703,178.10, 13,390,479.18 and 5,352,447.78 is: 7,386,429.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,703,178.10 : 13,390,479.18 = 5,352,447.78 : x
  2. Step 2: Convert to fraction form
    9,703,178.10/13,390,479.18 = 5,352,447.78/x
  3. Step 3: Cross multiply
    9,703,178.10x = 13,390,479.18 × 5,352,447.78
  4. Step 4: Simplify right side
    9,703,178.10x = 71,671,840,560,127.22
  5. Step 5: Solve for x
    x = 71,671,840,560,127.22/9,703,178.10
  6. Step 6: Final answer
    x = 7,386,429.46

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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.