Home / 147,905,111.70-221,857,667.55-90,509,483.70

Finding the Fourth Proportional to 147,905,111.70, 221,857,667.55 and 90,509,483.70

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Solution

The fourth proportional to 147,905,111.70, 221,857,667.55 and 90,509,483.70 is: 135,764,225.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,905,111.70 : 221,857,667.55 = 90,509,483.70 : x
  2. Step 2: Convert to fraction form
    147,905,111.70/221,857,667.55 = 90,509,483.70/x
  3. Step 3: Cross multiply
    147,905,111.70x = 221,857,667.55 × 90,509,483.70
  4. Step 4: Simplify right side
    147,905,111.70x = 20,080,222,944,836,744
  5. Step 5: Solve for x
    x = 20,080,222,944,836,744/147,905,111.70
  6. Step 6: Final answer
    x = 135,764,225.55

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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.