Home / 103,519,903.80-155,279,855.70-79,632,031.80

Finding the Fourth Proportional to 103,519,903.80, 155,279,855.70 and 79,632,031.80

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Solution

The fourth proportional to 103,519,903.80, 155,279,855.70 and 79,632,031.80 is: 119,448,047.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,519,903.80 : 155,279,855.70 = 79,632,031.80 : x
  2. Step 2: Convert to fraction form
    103,519,903.80/155,279,855.70 = 79,632,031.80/x
  3. Step 3: Cross multiply
    103,519,903.80x = 155,279,855.70 × 79,632,031.80
  4. Step 4: Simplify right side
    103,519,903.80x = 12,365,250,407,001,810
  5. Step 5: Solve for x
    x = 12,365,250,407,001,810/103,519,903.80
  6. Step 6: Final answer
    x = 119,448,047.70

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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.