Home / 328,009,574.80-492,022,235.40-97,986,163.60

Finding the Fourth Proportional to 328,009,574.80, 492,022,235.40 and 97,986,163.60

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Solution

The fourth proportional to 328,009,574.80, 492,022,235.40 and 97,986,163.60 is: 146,981,597.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,009,574.80 : 492,022,235.40 = 97,986,163.60 : x
  2. Step 2: Convert to fraction form
    328,009,574.80/492,022,235.40 = 97,986,163.60/x
  3. Step 3: Cross multiply
    328,009,574.80x = 492,022,235.40 × 97,986,163.60
  4. Step 4: Simplify right side
    328,009,574.80x = 48,211,371,252,742,104
  5. Step 5: Solve for x
    x = 48,211,371,252,742,104/328,009,574.80
  6. Step 6: Final answer
    x = 146,981,597.36

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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.