Home / 650,395,891,542.40-897,570,553,134.72-390,015,993,113.92

Finding the Fourth Proportional to 650,395,891,542.40, 897,570,553,134.72 and 390,015,993,113.92

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Solution

The fourth proportional to 650,395,891,542.40, 897,570,553,134.72 and 390,015,993,113.92 is: 538,236,595,930.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    650,395,891,542.40 : 897,570,553,134.72 = 390,015,993,113.92 : x
  2. Step 2: Convert to fraction form
    650,395,891,542.40/897,570,553,134.72 = 390,015,993,113.92/x
  3. Step 3: Cross multiply
    650,395,891,542.40x = 897,570,553,134.72 × 390,015,993,113.92
  4. Step 4: Simplify right side
    650,395,891,542.40x = 350,066,870,670,648,319,934,464
  5. Step 5: Solve for x
    x = 350,066,870,670,648,319,934,464/650,395,891,542.40
  6. Step 6: Final answer
    x = 538,236,595,930.02

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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.