Home / 144,585,408.60-199,528,100.06-78,506,034.66

Finding the Fourth Proportional to 144,585,408.60, 199,528,100.06 and 78,506,034.66

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Solution

The fourth proportional to 144,585,408.60, 199,528,100.06 and 78,506,034.66 is: 108,338,456.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,585,408.60 : 199,528,100.06 = 78,506,034.66 : x
  2. Step 2: Convert to fraction form
    144,585,408.60/199,528,100.06 = 78,506,034.66/x
  3. Step 3: Cross multiply
    144,585,408.60x = 199,528,100.06 × 78,506,034.66
  4. Step 4: Simplify right side
    144,585,408.60x = 15,664,159,938,561,778
  5. Step 5: Solve for x
    x = 15,664,159,938,561,778/144,585,408.60
  6. Step 6: Final answer
    x = 108,338,456.07

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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.