Home / 72,748,987.67-100,378,616.33-41,803,178.24

Finding the Fourth Proportional to 72,748,987.67, 100,378,616.33 and 41,803,178.24

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Solution

The fourth proportional to 72,748,987.67, 100,378,616.33 and 41,803,178.24 is: 57,679,774.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,748,987.67 : 100,378,616.33 = 41,803,178.24 : x
  2. Step 2: Convert to fraction form
    72,748,987.67/100,378,616.33 = 41,803,178.24/x
  3. Step 3: Cross multiply
    72,748,987.67x = 100,378,616.33 × 41,803,178.24
  4. Step 4: Simplify right side
    72,748,987.67x = 4,196,145,189,216,656
  5. Step 5: Solve for x
    x = 4,196,145,189,216,656/72,748,987.67
  6. Step 6: Final answer
    x = 57,679,774.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.