Home / 71,075,760.12-106,620,146.51-19,957,434.48

Finding the Fourth Proportional to 71,075,760.12, 106,620,146.51 and 19,957,434.48

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Solution

The fourth proportional to 71,075,760.12, 106,620,146.51 and 19,957,434.48 is: 29,937,978.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,075,760.12 : 106,620,146.51 = 19,957,434.48 : x
  2. Step 2: Convert to fraction form
    71,075,760.12/106,620,146.51 = 19,957,434.48/x
  3. Step 3: Cross multiply
    71,075,760.12x = 106,620,146.51 × 19,957,434.48
  4. Step 4: Simplify right side
    71,075,760.12x = 2,127,864,588,121,538.50
  5. Step 5: Solve for x
    x = 2,127,864,588,121,538.50/71,075,760.12
  6. Step 6: Final answer
    x = 29,937,978.64

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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.