Home / 144,872,128.60-217,308,192.90-47,842,811.80

Finding the Fourth Proportional to 144,872,128.60, 217,308,192.90 and 47,842,811.80

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Solution

The fourth proportional to 144,872,128.60, 217,308,192.90 and 47,842,811.80 is: 71,764,217.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,872,128.60 : 217,308,192.90 = 47,842,811.80 : x
  2. Step 2: Convert to fraction form
    144,872,128.60/217,308,192.90 = 47,842,811.80/x
  3. Step 3: Cross multiply
    144,872,128.60x = 217,308,192.90 × 47,842,811.80
  4. Step 4: Simplify right side
    144,872,128.60x = 10,396,634,975,512,796
  5. Step 5: Solve for x
    x = 10,396,634,975,512,796/144,872,128.60
  6. Step 6: Final answer
    x = 71,764,217.70

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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.