Home / 142,475,948.80-213,713,923.20-82,009,772.80

Finding the Fourth Proportional to 142,475,948.80, 213,713,923.20 and 82,009,772.80

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Solution

The fourth proportional to 142,475,948.80, 213,713,923.20 and 82,009,772.80 is: 123,014,659.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,475,948.80 : 213,713,923.20 = 82,009,772.80 : x
  2. Step 2: Convert to fraction form
    142,475,948.80/213,713,923.20 = 82,009,772.80/x
  3. Step 3: Cross multiply
    142,475,948.80x = 213,713,923.20 × 82,009,772.80
  4. Step 4: Simplify right side
    142,475,948.80x = 17,526,630,285,828,648
  5. Step 5: Solve for x
    x = 17,526,630,285,828,648/142,475,948.80
  6. Step 6: Final answer
    x = 123,014,659.20

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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.