Home / 103,519,880.30-155,279,820.45-79,632,008.30

Finding the Fourth Proportional to 103,519,880.30, 155,279,820.45 and 79,632,008.30

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Solution

The fourth proportional to 103,519,880.30, 155,279,820.45 and 79,632,008.30 is: 119,448,012.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,519,880.30 : 155,279,820.45 = 79,632,008.30 : x
  2. Step 2: Convert to fraction form
    103,519,880.30/155,279,820.45 = 79,632,008.30/x
  3. Step 3: Cross multiply
    103,519,880.30x = 155,279,820.45 × 79,632,008.30
  4. Step 4: Simplify right side
    103,519,880.30x = 12,365,243,950,896,908
  5. Step 5: Solve for x
    x = 12,365,243,950,896,908/103,519,880.30
  6. Step 6: Final answer
    x = 119,448,012.45

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.