Home / 12,953,891.70-19,430,837.55-3,977,277.30

Finding the Fourth Proportional to 12,953,891.70, 19,430,837.55 and 3,977,277.30

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Solution

The fourth proportional to 12,953,891.70, 19,430,837.55 and 3,977,277.30 is: 5,965,915.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953,891.70 : 19,430,837.55 = 3,977,277.30 : x
  2. Step 2: Convert to fraction form
    12,953,891.70/19,430,837.55 = 3,977,277.30/x
  3. Step 3: Cross multiply
    12,953,891.70x = 19,430,837.55 × 3,977,277.30
  4. Step 4: Simplify right side
    12,953,891.70x = 77,281,829,107,602.61
  5. Step 5: Solve for x
    x = 77,281,829,107,602.61/12,953,891.70
  6. Step 6: Final answer
    x = 5,965,915.95

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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.