Home / 123,743,798.70-185,757,415.65-72,654,603.90

Finding the Fourth Proportional to 123,743,798.70, 185,757,415.65 and 72,654,603.90

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Solution

The fourth proportional to 123,743,798.70, 185,757,415.65 and 72,654,603.90 is: 109,065,113.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,743,798.70 : 185,757,415.65 = 72,654,603.90 : x
  2. Step 2: Convert to fraction form
    123,743,798.70/185,757,415.65 = 72,654,603.90/x
  3. Step 3: Cross multiply
    123,743,798.70x = 185,757,415.65 × 72,654,603.90
  4. Step 4: Simplify right side
    123,743,798.70x = 13,496,131,455,538,412
  5. Step 5: Solve for x
    x = 13,496,131,455,538,412/123,743,798.70
  6. Step 6: Final answer
    x = 109,065,113.54

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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.