Home / 147,686,939.81-203,819,594.96-84,109,967.20

Finding the Fourth Proportional to 147,686,939.81, 203,819,594.96 and 84,109,967.20

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Solution

The fourth proportional to 147,686,939.81, 203,819,594.96 and 84,109,967.20 is: 116,078,371.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,686,939.81 : 203,819,594.96 = 84,109,967.20 : x
  2. Step 2: Convert to fraction form
    147,686,939.81/203,819,594.96 = 84,109,967.20/x
  3. Step 3: Cross multiply
    147,686,939.81x = 203,819,594.96 × 84,109,967.20
  4. Step 4: Simplify right side
    147,686,939.81x = 17,143,259,446,802,886
  5. Step 5: Solve for x
    x = 17,143,259,446,802,886/147,686,939.81
  6. Step 6: Final answer
    x = 116,078,371.38

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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.