Home / 53,011,915.20-79,559,863.20-20,679,307.20

Finding the Fourth Proportional to 53,011,915.20, 79,559,863.20 and 20,679,307.20

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Solution

The fourth proportional to 53,011,915.20, 79,559,863.20 and 20,679,307.20 is: 31,035,340.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,011,915.20 : 79,559,863.20 = 20,679,307.20 : x
  2. Step 2: Convert to fraction form
    53,011,915.20/79,559,863.20 = 20,679,307.20/x
  3. Step 3: Cross multiply
    53,011,915.20x = 79,559,863.20 × 20,679,307.20
  4. Step 4: Simplify right side
    53,011,915.20x = 1,645,242,851,902,775
  5. Step 5: Solve for x
    x = 1,645,242,851,902,775/53,011,915.20
  6. Step 6: Final answer
    x = 31,035,340.75

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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.