Home / 147,686,937.81-203,819,592.20-84,109,965.20

Finding the Fourth Proportional to 147,686,937.81, 203,819,592.20 and 84,109,965.20

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Solution

The fourth proportional to 147,686,937.81, 203,819,592.20 and 84,109,965.20 is: 116,078,368.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    147,686,937.81 : 203,819,592.20 = 84,109,965.20 : x
  2. Step 2: Convert to fraction form
    147,686,937.81/203,819,592.20 = 84,109,965.20/x
  3. Step 3: Cross multiply
    147,686,937.81x = 203,819,592.20 × 84,109,965.20
  4. Step 4: Simplify right side
    147,686,937.81x = 17,143,258,806,651,652
  5. Step 5: Solve for x
    x = 17,143,258,806,651,652/147,686,937.81
  6. Step 6: Final answer
    x = 116,078,368.61

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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.