Home / 52,145,128.85-78,220,682.37-13,805,646.71

Finding the Fourth Proportional to 52,145,128.85, 78,220,682.37 and 13,805,646.71

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Solution

The fourth proportional to 52,145,128.85, 78,220,682.37 and 13,805,646.71 is: 20,709,261.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,145,128.85 : 78,220,682.37 = 13,805,646.71 : x
  2. Step 2: Convert to fraction form
    52,145,128.85/78,220,682.37 = 13,805,646.71/x
  3. Step 3: Cross multiply
    52,145,128.85x = 78,220,682.37 × 13,805,646.71
  4. Step 4: Simplify right side
    52,145,128.85x = 1,079,887,105,824,242.12
  5. Step 5: Solve for x
    x = 1,079,887,105,824,242.12/52,145,128.85
  6. Step 6: Final answer
    x = 20,709,261.44

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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.