Home / 201,868,509,729.80-302,803,277,455.74-82,485,834,417.18

Finding the Fourth Proportional to 201,868,509,729.80, 302,803,277,455.74 and 82,485,834,417.18

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Solution

The fourth proportional to 201,868,509,729.80, 302,803,277,455.74 and 82,485,834,417.18 is: 123,728,961,186.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,868,509,729.80 : 302,803,277,455.74 = 82,485,834,417.18 : x
  2. Step 2: Convert to fraction form
    201,868,509,729.80/302,803,277,455.74 = 82,485,834,417.18/x
  3. Step 3: Cross multiply
    201,868,509,729.80x = 302,803,277,455.74 × 82,485,834,417.18
  4. Step 4: Simplify right side
    201,868,509,729.80x = 24,976,981,005,193,581,690,880
  5. Step 5: Solve for x
    x = 24,976,981,005,193,581,690,880/201,868,509,729.80
  6. Step 6: Final answer
    x = 123,728,961,186.79

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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.