Home / 89,991,748.15-135,036,763.88-38,168,289.79

Finding the Fourth Proportional to 89,991,748.15, 135,036,763.88 and 38,168,289.79

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Solution

The fourth proportional to 89,991,748.15, 135,036,763.88 and 38,168,289.79 is: 57,273,277.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,991,748.15 : 135,036,763.88 = 38,168,289.79 : x
  2. Step 2: Convert to fraction form
    89,991,748.15/135,036,763.88 = 38,168,289.79/x
  3. Step 3: Cross multiply
    89,991,748.15x = 135,036,763.88 × 38,168,289.79
  4. Step 4: Simplify right side
    89,991,748.15x = 5,154,122,336,075,644
  5. Step 5: Solve for x
    x = 5,154,122,336,075,644/89,991,748.15
  6. Step 6: Final answer
    x = 57,273,277.18

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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.