Home / 125,431,372.80-188,147,059.20-99,603,340.20

Finding the Fourth Proportional to 125,431,372.80, 188,147,059.20 and 99,603,340.20

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Solution

The fourth proportional to 125,431,372.80, 188,147,059.20 and 99,603,340.20 is: 149,405,010.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,431,372.80 : 188,147,059.20 = 99,603,340.20 : x
  2. Step 2: Convert to fraction form
    125,431,372.80/188,147,059.20 = 99,603,340.20/x
  3. Step 3: Cross multiply
    125,431,372.80x = 188,147,059.20 × 99,603,340.20
  4. Step 4: Simplify right side
    125,431,372.80x = 18,740,075,545,127,140
  5. Step 5: Solve for x
    x = 18,740,075,545,127,140/125,431,372.80
  6. Step 6: Final answer
    x = 149,405,010.30

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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.