Home / 12,953,875.70-19,430,813.55-3,977,261.30

Finding the Fourth Proportional to 12,953,875.70, 19,430,813.55 and 3,977,261.30

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Solution

The fourth proportional to 12,953,875.70, 19,430,813.55 and 3,977,261.30 is: 5,965,891.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953,875.70 : 19,430,813.55 = 3,977,261.30 : x
  2. Step 2: Convert to fraction form
    12,953,875.70/19,430,813.55 = 3,977,261.30/x
  3. Step 3: Cross multiply
    12,953,875.70x = 19,430,813.55 × 3,977,261.30
  4. Step 4: Simplify right side
    12,953,875.70x = 77,281,422,759,930.61
  5. Step 5: Solve for x
    x = 77,281,422,759,930.61/12,953,875.70
  6. Step 6: Final answer
    x = 5,965,891.95

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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.