Home / 52,488,661.20-78,709,372.20-20,129,809.20

Finding the Fourth Proportional to 52,488,661.20, 78,709,372.20 and 20,129,809.20

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Solution

The fourth proportional to 52,488,661.20, 78,709,372.20 and 20,129,809.20 is: 30,185,655.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,488,661.20 : 78,709,372.20 = 20,129,809.20 : x
  2. Step 2: Convert to fraction form
    52,488,661.20/78,709,372.20 = 20,129,809.20/x
  3. Step 3: Cross multiply
    52,488,661.20x = 78,709,372.20 × 20,129,809.20
  4. Step 4: Simplify right side
    52,488,661.20x = 1,584,404,644,637,784.25
  5. Step 5: Solve for x
    x = 1,584,404,644,637,784.25/52,488,661.20
  6. Step 6: Final answer
    x = 30,185,655.50

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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.