Home / 136,953,428.40-189,245,982.49-99,718,845.19

Finding the Fourth Proportional to 136,953,428.40, 189,245,982.49 and 99,718,845.19

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Solution

The fourth proportional to 136,953,428.40, 189,245,982.49 and 99,718,845.19 is: 137,794,219.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,953,428.40 : 189,245,982.49 = 99,718,845.19 : x
  2. Step 2: Convert to fraction form
    136,953,428.40/189,245,982.49 = 99,718,845.19/x
  3. Step 3: Cross multiply
    136,953,428.40x = 189,245,982.49 × 99,718,845.19
  4. Step 4: Simplify right side
    136,953,428.40x = 18,871,390,830,027,348
  5. Step 5: Solve for x
    x = 18,871,390,830,027,348/136,953,428.40
  6. Step 6: Final answer
    x = 137,794,219.91

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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.