Home / 28,049,992,899.50-38,710,206,989.79-15,533,494,467.50

Finding the Fourth Proportional to 28,049,992,899.50, 38,710,206,989.79 and 15,533,494,467.50

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Solution

The fourth proportional to 28,049,992,899.50, 38,710,206,989.79 and 15,533,494,467.50 is: 21,436,896,196.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,049,992,899.50 : 38,710,206,989.79 = 15,533,494,467.50 : x
  2. Step 2: Convert to fraction form
    28,049,992,899.50/38,710,206,989.79 = 15,533,494,467.50/x
  3. Step 3: Cross multiply
    28,049,992,899.50x = 38,710,206,989.79 × 15,533,494,467.50
  4. Step 4: Simplify right side
    28,049,992,899.50x = 601,304,786,111,682,838,528
  5. Step 5: Solve for x
    x = 601,304,786,111,682,838,528/28,049,992,899.50
  6. Step 6: Final answer
    x = 21,436,896,196.95

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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.