Home / 143,078,246,475.04-197,442,231,552.62-77,971,291,228.88

Finding the Fourth Proportional to 143,078,246,475.04, 197,442,231,552.62 and 77,971,291,228.88

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Solution

The fourth proportional to 143,078,246,475.04, 197,442,231,552.62 and 77,971,291,228.88 is: 107,597,249,173.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,078,246,475.04 : 197,442,231,552.62 = 77,971,291,228.88 : x
  2. Step 2: Convert to fraction form
    143,078,246,475.04/197,442,231,552.62 = 77,971,291,228.88/x
  3. Step 3: Cross multiply
    143,078,246,475.04x = 197,442,231,552.62 × 77,971,291,228.88
  4. Step 4: Simplify right side
    143,078,246,475.04x = 15,394,825,737,269,294,399,488
  5. Step 5: Solve for x
    x = 15,394,825,737,269,294,399,488/143,078,246,475.04
  6. Step 6: Final answer
    x = 107,597,249,173.41

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1.5x scale

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.