Home / 144,896,691.60-217,596,979.80-76,872,243.60

Finding the Fourth Proportional to 144,896,691.60, 217,596,979.80 and 76,872,243.60

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Solution

The fourth proportional to 144,896,691.60, 217,596,979.80 and 76,872,243.60 is: 115,442,028.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,896,691.60 : 217,596,979.80 = 76,872,243.60 : x
  2. Step 2: Convert to fraction form
    144,896,691.60/217,596,979.80 = 76,872,243.60/x
  3. Step 3: Cross multiply
    144,896,691.60x = 217,596,979.80 × 76,872,243.60
  4. Step 4: Simplify right side
    144,896,691.60x = 16,727,168,037,809,878
  5. Step 5: Solve for x
    x = 16,727,168,037,809,878/144,896,691.60
  6. Step 6: Final answer
    x = 115,442,028.75

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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.