Home / 10,975,012.77-15,121,129.86-7,247,224.83

Finding the Fourth Proportional to 10,975,012.77, 15,121,129.86 and 7,247,224.83

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Solution

The fourth proportional to 10,975,012.77, 15,121,129.86 and 7,247,224.83 is: 9,985,066.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,975,012.77 : 15,121,129.86 = 7,247,224.83 : x
  2. Step 2: Convert to fraction form
    10,975,012.77/15,121,129.86 = 7,247,224.83/x
  3. Step 3: Cross multiply
    10,975,012.77x = 15,121,129.86 × 7,247,224.83
  4. Step 4: Simplify right side
    10,975,012.77x = 109,586,227,779,046.42
  5. Step 5: Solve for x
    x = 109,586,227,779,046.42/10,975,012.77
  6. Step 6: Final answer
    x = 9,985,066.08

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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.