Home / 72,748,983.92-100,378,611.16-41,803,174.49

Finding the Fourth Proportional to 72,748,983.92, 100,378,611.16 and 41,803,174.49

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Solution

The fourth proportional to 72,748,983.92, 100,378,611.16 and 41,803,174.49 is: 57,679,769.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,748,983.92 : 100,378,611.16 = 41,803,174.49 : x
  2. Step 2: Convert to fraction form
    72,748,983.92/100,378,611.16 = 41,803,174.49/x
  3. Step 3: Cross multiply
    72,748,983.92x = 100,378,611.16 × 41,803,174.49
  4. Step 4: Simplify right side
    72,748,983.92x = 4,196,144,596,778,940
  5. Step 5: Solve for x
    x = 4,196,144,596,778,940/72,748,983.92
  6. Step 6: Final answer
    x = 57,679,769.13

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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.