Home / 28,558,940,434.50-42,838,593,200.43-8,390,283,785.58

Finding the Fourth Proportional to 28,558,940,434.50, 42,838,593,200.43 and 8,390,283,785.58

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Solution

The fourth proportional to 28,558,940,434.50, 42,838,593,200.43 and 8,390,283,785.58 is: 12,585,479,309.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,558,940,434.50 : 42,838,593,200.43 = 8,390,283,785.58 : x
  2. Step 2: Convert to fraction form
    28,558,940,434.50/42,838,593,200.43 = 8,390,283,785.58/x
  3. Step 3: Cross multiply
    28,558,940,434.50x = 42,838,593,200.43 × 8,390,283,785.58
  4. Step 4: Simplify right side
    28,558,940,434.50x = 359,427,953,926,625,492,992
  5. Step 5: Solve for x
    x = 359,427,953,926,625,492,992/28,558,940,434.50
  6. Step 6: Final answer
    x = 12,585,479,309.04

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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.