Home / 144,257,526.45-199,075,555.12-78,178,021.29

Finding the Fourth Proportional to 144,257,526.45, 199,075,555.12 and 78,178,021.29

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Solution

The fourth proportional to 144,257,526.45, 199,075,555.12 and 78,178,021.29 is: 107,885,760.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,257,526.45 : 199,075,555.12 = 78,178,021.29 : x
  2. Step 2: Convert to fraction form
    144,257,526.45/199,075,555.12 = 78,178,021.29/x
  3. Step 3: Cross multiply
    144,257,526.45x = 199,075,555.12 × 78,178,021.29
  4. Step 4: Simplify right side
    144,257,526.45x = 15,563,332,986,489,930
  5. Step 5: Solve for x
    x = 15,563,332,986,489,930/144,257,526.45
  6. Step 6: Final answer
    x = 107,885,760.76

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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.