Home / 15,288,366.11-21,097,678.29-8,318,808.53

Finding the Fourth Proportional to 15,288,366.11, 21,097,678.29 and 8,318,808.53

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Solution

The fourth proportional to 15,288,366.11, 21,097,678.29 and 8,318,808.53 is: 11,479,810.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,288,366.11 : 21,097,678.29 = 8,318,808.53 : x
  2. Step 2: Convert to fraction form
    15,288,366.11/21,097,678.29 = 8,318,808.53/x
  3. Step 3: Cross multiply
    15,288,366.11x = 21,097,678.29 × 8,318,808.53
  4. Step 4: Simplify right side
    15,288,366.11x = 175,507,546,122,047.81
  5. Step 5: Solve for x
    x = 175,507,546,122,047.81/15,288,366.11
  6. Step 6: Final answer
    x = 11,479,810.52

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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.