Home / 10,366,609.18-15,549,913.77-7,138,105.10

Finding the Fourth Proportional to 10,366,609.18, 15,549,913.77 and 7,138,105.10

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Solution

The fourth proportional to 10,366,609.18, 15,549,913.77 and 7,138,105.10 is: 10,707,157.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,366,609.18 : 15,549,913.77 = 7,138,105.10 : x
  2. Step 2: Convert to fraction form
    10,366,609.18/15,549,913.77 = 7,138,105.10/x
  3. Step 3: Cross multiply
    10,366,609.18x = 15,549,913.77 × 7,138,105.10
  4. Step 4: Simplify right side
    10,366,609.18x = 110,996,918,786,197.22
  5. Step 5: Solve for x
    x = 110,996,918,786,197.22/10,366,609.18
  6. Step 6: Final answer
    x = 10,707,157.65

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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.