Home / 147,686,940.31-203,819,595.65-84,109,967.70

Finding the Fourth Proportional to 147,686,940.31, 203,819,595.65 and 84,109,967.70

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Solution

The fourth proportional to 147,686,940.31, 203,819,595.65 and 84,109,967.70 is: 116,078,372.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,686,940.31 : 203,819,595.65 = 84,109,967.70 : x
  2. Step 2: Convert to fraction form
    147,686,940.31/203,819,595.65 = 84,109,967.70/x
  3. Step 3: Cross multiply
    147,686,940.31x = 203,819,595.65 × 84,109,967.70
  4. Step 4: Simplify right side
    147,686,940.31x = 17,143,259,606,748,562
  5. Step 5: Solve for x
    x = 17,143,259,606,748,562/147,686,940.31
  6. Step 6: Final answer
    x = 116,078,372.07

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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.