Home / 145,136,091.78-200,287,817.49-79,945,995.78

Finding the Fourth Proportional to 145,136,091.78, 200,287,817.49 and 79,945,995.78

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Solution

The fourth proportional to 145,136,091.78, 200,287,817.49 and 79,945,995.78 is: 110,325,480.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,136,091.78 : 200,287,817.49 = 79,945,995.78 : x
  2. Step 2: Convert to fraction form
    145,136,091.78/200,287,817.49 = 79,945,995.78/x
  3. Step 3: Cross multiply
    145,136,091.78x = 200,287,817.49 × 79,945,995.78
  4. Step 4: Simplify right side
    145,136,091.78x = 16,012,209,011,840,952
  5. Step 5: Solve for x
    x = 16,012,209,011,840,952/145,136,091.78
  6. Step 6: Final answer
    x = 110,325,480.14

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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.