Home / 145,136,091.28-200,287,816.80-79,945,995.28

Finding the Fourth Proportional to 145,136,091.28, 200,287,816.80 and 79,945,995.28

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Solution

The fourth proportional to 145,136,091.28, 200,287,816.80 and 79,945,995.28 is: 110,325,479.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,136,091.28 : 200,287,816.80 = 79,945,995.28 : x
  2. Step 2: Convert to fraction form
    145,136,091.28/200,287,816.80 = 79,945,995.28/x
  3. Step 3: Cross multiply
    145,136,091.28x = 200,287,816.80 × 79,945,995.28
  4. Step 4: Simplify right side
    145,136,091.28x = 16,012,208,856,534,306
  5. Step 5: Solve for x
    x = 16,012,208,856,534,306/145,136,091.28
  6. Step 6: Final answer
    x = 110,325,479.45

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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.