Home / 145,155,964.40-218,181,844.20-142,468,578.80

Finding the Fourth Proportional to 145,155,964.40, 218,181,844.20 and 142,468,578.80

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Solution

The fourth proportional to 145,155,964.40, 218,181,844.20 and 142,468,578.80 is: 214,142,473.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,155,964.40 : 218,181,844.20 = 142,468,578.80 : x
  2. Step 2: Convert to fraction form
    145,155,964.40/218,181,844.20 = 142,468,578.80/x
  3. Step 3: Cross multiply
    145,155,964.40x = 218,181,844.20 × 142,468,578.80
  4. Step 4: Simplify right side
    145,155,964.40x = 31,084,057,263,137,024
  5. Step 5: Solve for x
    x = 31,084,057,263,137,024/145,155,964.40
  6. Step 6: Final answer
    x = 214,142,473.52

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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.