Home / 12,953,901.70-19,430,852.55-3,977,287.30

Finding the Fourth Proportional to 12,953,901.70, 19,430,852.55 and 3,977,287.30

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Solution

The fourth proportional to 12,953,901.70, 19,430,852.55 and 3,977,287.30 is: 5,965,930.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,953,901.70 : 19,430,852.55 = 3,977,287.30 : x
  2. Step 2: Convert to fraction form
    12,953,901.70/19,430,852.55 = 3,977,287.30/x
  3. Step 3: Cross multiply
    12,953,901.70x = 19,430,852.55 × 3,977,287.30
  4. Step 4: Simplify right side
    12,953,901.70x = 77,282,083,075,287.61
  5. Step 5: Solve for x
    x = 77,282,083,075,287.61/12,953,901.70
  6. Step 6: Final answer
    x = 5,965,930.95

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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.