Home / 145,220,985.04-200,399,112.68-79,140,064.46

Finding the Fourth Proportional to 145,220,985.04, 200,399,112.68 and 79,140,064.46

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Solution

The fourth proportional to 145,220,985.04, 200,399,112.68 and 79,140,064.46 is: 109,210,102.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,220,985.04 : 200,399,112.68 = 79,140,064.46 : x
  2. Step 2: Convert to fraction form
    145,220,985.04/200,399,112.68 = 79,140,064.46/x
  3. Step 3: Cross multiply
    145,220,985.04x = 200,399,112.68 × 79,140,064.46
  4. Step 4: Simplify right side
    145,220,985.04x = 15,859,598,695,222,002
  5. Step 5: Solve for x
    x = 15,859,598,695,222,002/145,220,985.04
  6. Step 6: Final answer
    x = 109,210,102.73

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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.