Home / 15,776,812.40-21,771,559.32-8,901,934.16

Finding the Fourth Proportional to 15,776,812.40, 21,771,559.32 and 8,901,934.16

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Solution

The fourth proportional to 15,776,812.40, 21,771,559.32 and 8,901,934.16 is: 12,284,419.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,776,812.40 : 21,771,559.32 = 8,901,934.16 : x
  2. Step 2: Convert to fraction form
    15,776,812.40/21,771,559.32 = 8,901,934.16/x
  3. Step 3: Cross multiply
    15,776,812.40x = 21,771,559.32 × 8,901,934.16
  4. Step 4: Simplify right side
    15,776,812.40x = 193,808,987,627,174.38
  5. Step 5: Solve for x
    x = 193,808,987,627,174.38/15,776,812.40
  6. Step 6: Final answer
    x = 12,284,419.86

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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.