Home / 135,070,407.95-186,376,550.05-76,311,633.78

Finding the Fourth Proportional to 135,070,407.95, 186,376,550.05 and 76,311,633.78

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Solution

The fourth proportional to 135,070,407.95, 186,376,550.05 and 76,311,633.78 is: 105,298,408.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,070,407.95 : 186,376,550.05 = 76,311,633.78 : x
  2. Step 2: Convert to fraction form
    135,070,407.95/186,376,550.05 = 76,311,633.78/x
  3. Step 3: Cross multiply
    135,070,407.95x = 186,376,550.05 × 76,311,633.78
  4. Step 4: Simplify right side
    135,070,407.95x = 14,222,699,032,595,442
  5. Step 5: Solve for x
    x = 14,222,699,032,595,442/135,070,407.95
  6. Step 6: Final answer
    x = 105,298,408.80

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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.