Home / 12,689,941,687.91-17,512,539,506.59-6,974,428,703.48

Finding the Fourth Proportional to 12,689,941,687.91, 17,512,539,506.59 and 6,974,428,703.48

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Solution

The fourth proportional to 12,689,941,687.91, 17,512,539,506.59 and 6,974,428,703.48 is: 9,624,942,431.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,689,941,687.91 : 17,512,539,506.59 = 6,974,428,703.48 : x
  2. Step 2: Convert to fraction form
    12,689,941,687.91/17,512,539,506.59 = 6,974,428,703.48/x
  3. Step 3: Cross multiply
    12,689,941,687.91x = 17,512,539,506.59 × 6,974,428,703.48
  4. Step 4: Simplify right side
    12,689,941,687.91x = 122,139,958,205,618,618,368
  5. Step 5: Solve for x
    x = 122,139,958,205,618,618,368/12,689,941,687.91
  6. Step 6: Final answer
    x = 9,624,942,431.53

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.