Home / 650,395,891,546.40-897,570,553,140.24-390,015,993,117.92

Finding the Fourth Proportional to 650,395,891,546.40, 897,570,553,140.24 and 390,015,993,117.92

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Solution

The fourth proportional to 650,395,891,546.40, 897,570,553,140.24 and 390,015,993,117.92 is: 538,236,595,935.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,395,891,546.40 : 897,570,553,140.24 = 390,015,993,117.92 : x
  2. Step 2: Convert to fraction form
    650,395,891,546.40/897,570,553,140.24 = 390,015,993,117.92/x
  3. Step 3: Cross multiply
    650,395,891,546.40x = 897,570,553,140.24 × 390,015,993,117.92
  4. Step 4: Simplify right side
    650,395,891,546.40x = 350,066,870,676,391,496,515,584
  5. Step 5: Solve for x
    x = 350,066,870,676,391,496,515,584/650,395,891,546.40
  6. Step 6: Final answer
    x = 538,236,595,935.54

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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.