Home / 15,315,090.12-21,134,551.86-8,345,828.52

Finding the Fourth Proportional to 15,315,090.12, 21,134,551.86 and 8,345,828.52

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Solution

The fourth proportional to 15,315,090.12, 21,134,551.86 and 8,345,828.52 is: 11,517,094.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,315,090.12 : 21,134,551.86 = 8,345,828.52 : x
  2. Step 2: Convert to fraction form
    15,315,090.12/21,134,551.86 = 8,345,828.52/x
  3. Step 3: Cross multiply
    15,315,090.12x = 21,134,551.86 × 8,345,828.52
  4. Step 4: Simplify right side
    15,315,090.12x = 176,385,345,670,607.03
  5. Step 5: Solve for x
    x = 176,385,345,670,607.03/15,315,090.12
  6. Step 6: Final answer
    x = 11,517,094.86

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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.