Home / 149,871,934.40-206,708,757.06-128,998,924.82

Finding the Fourth Proportional to 149,871,934.40, 206,708,757.06 and 128,998,924.82

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Solution

The fourth proportional to 149,871,934.40, 206,708,757.06 and 128,998,924.82 is: 177,919,952.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,871,934.40 : 206,708,757.06 = 128,998,924.82 : x
  2. Step 2: Convert to fraction form
    149,871,934.40/206,708,757.06 = 128,998,924.82/x
  3. Step 3: Cross multiply
    149,871,934.40x = 206,708,757.06 × 128,998,924.82
  4. Step 4: Simplify right side
    149,871,934.40x = 26,665,207,411,842,652
  5. Step 5: Solve for x
    x = 26,665,207,411,842,652/149,871,934.40
  6. Step 6: Final answer
    x = 177,919,952.25

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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.