Home / 147,686,939.31-203,819,594.27-84,109,966.70

Finding the Fourth Proportional to 147,686,939.31, 203,819,594.27 and 84,109,966.70

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Solution

The fourth proportional to 147,686,939.31, 203,819,594.27 and 84,109,966.70 is: 116,078,370.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,686,939.31 : 203,819,594.27 = 84,109,966.70 : x
  2. Step 2: Convert to fraction form
    147,686,939.31/203,819,594.27 = 84,109,966.70/x
  3. Step 3: Cross multiply
    147,686,939.31x = 203,819,594.27 × 84,109,966.70
  4. Step 4: Simplify right side
    147,686,939.31x = 17,143,259,286,048,386
  5. Step 5: Solve for x
    x = 17,143,259,286,048,386/147,686,939.31
  6. Step 6: Final answer
    x = 116,078,370.68

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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.