Home / 140,963,818.28-211,653,292.53-78,836,853.56

Finding the Fourth Proportional to 140,963,818.28, 211,653,292.53 and 78,836,853.56

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Solution

The fourth proportional to 140,963,818.28, 211,653,292.53 and 78,836,853.56 is: 118,371,365.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,963,818.28 : 211,653,292.53 = 78,836,853.56 : x
  2. Step 2: Convert to fraction form
    140,963,818.28/211,653,292.53 = 78,836,853.56/x
  3. Step 3: Cross multiply
    140,963,818.28x = 211,653,292.53 × 78,836,853.56
  4. Step 4: Simplify right side
    140,963,818.28x = 16,686,079,628,679,452
  5. Step 5: Solve for x
    x = 16,686,079,628,679,452/140,963,818.28
  6. Step 6: Final answer
    x = 118,371,365.31

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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.