Home / 215,964,276.80-323,974,831.20-79,745,345.60

Finding the Fourth Proportional to 215,964,276.80, 323,974,831.20 and 79,745,345.60

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Solution

The fourth proportional to 215,964,276.80, 323,974,831.20 and 79,745,345.60 is: 119,628,511.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,964,276.80 : 323,974,831.20 = 79,745,345.60 : x
  2. Step 2: Convert to fraction form
    215,964,276.80/323,974,831.20 = 79,745,345.60/x
  3. Step 3: Cross multiply
    215,964,276.80x = 323,974,831.20 × 79,745,345.60
  4. Step 4: Simplify right side
    215,964,276.80x = 25,835,484,879,745,660
  5. Step 5: Solve for x
    x = 25,835,484,879,745,660/215,964,276.80
  6. Step 6: Final answer
    x = 119,628,511.08

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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.