Home / 322,569,415.80-483,917,109.30-128,447,796.60

Finding the Fourth Proportional to 322,569,415.80, 483,917,109.30 and 128,447,796.60

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Solution

The fourth proportional to 322,569,415.80, 483,917,109.30 and 128,447,796.60 is: 192,696,775.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,569,415.80 : 483,917,109.30 = 128,447,796.60 : x
  2. Step 2: Convert to fraction form
    322,569,415.80/483,917,109.30 = 128,447,796.60/x
  3. Step 3: Cross multiply
    322,569,415.80x = 483,917,109.30 × 128,447,796.60
  4. Step 4: Simplify right side
    322,569,415.80x = 62,158,086,426,626,368
  5. Step 5: Solve for x
    x = 62,158,086,426,626,368/322,569,415.80
  6. Step 6: Final answer
    x = 192,696,775.89

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.