Home / 8,391,005.06-11,572,432.89-7,090,607.30

Finding the Fourth Proportional to 8,391,005.06, 11,572,432.89 and 7,090,607.30

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Solution

The fourth proportional to 8,391,005.06, 11,572,432.89 and 7,090,607.30 is: 9,778,992.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,391,005.06 : 11,572,432.89 = 7,090,607.30 : x
  2. Step 2: Convert to fraction form
    8,391,005.06/11,572,432.89 = 7,090,607.30/x
  3. Step 3: Cross multiply
    8,391,005.06x = 11,572,432.89 × 7,090,607.30
  4. Step 4: Simplify right side
    8,391,005.06x = 82,055,577,128,594.09
  5. Step 5: Solve for x
    x = 82,055,577,128,594.09/8,391,005.06
  6. Step 6: Final answer
    x = 9,778,992.69

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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.