Home / 21,316,228.80-31,967,344.80-7,851,307.20

Finding the Fourth Proportional to 21,316,228.80, 31,967,344.80 and 7,851,307.20

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Solution

The fourth proportional to 21,316,228.80, 31,967,344.80 and 7,851,307.20 is: 11,774,383.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,316,228.80 : 31,967,344.80 = 7,851,307.20 : x
  2. Step 2: Convert to fraction form
    21,316,228.80/31,967,344.80 = 7,851,307.20/x
  3. Step 3: Cross multiply
    21,316,228.80x = 31,967,344.80 × 7,851,307.20
  4. Step 4: Simplify right side
    21,316,228.80x = 250,985,444,393,122.56
  5. Step 5: Solve for x
    x = 250,985,444,393,122.56/21,316,228.80
  6. Step 6: Final answer
    x = 11,774,383.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.