Home / 28,109,265,005.95-42,162,412,522.39-9,220,064,521.44

Finding the Fourth Proportional to 28,109,265,005.95, 42,162,412,522.39 and 9,220,064,521.44

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Solution

The fourth proportional to 28,109,265,005.95, 42,162,412,522.39 and 9,220,064,521.44 is: 13,829,609,694.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,109,265,005.95 : 42,162,412,522.39 = 9,220,064,521.44 : x
  2. Step 2: Convert to fraction form
    28,109,265,005.95/42,162,412,522.39 = 9,220,064,521.44/x
  3. Step 3: Cross multiply
    28,109,265,005.95x = 42,162,412,522.39 × 9,220,064,521.44
  4. Step 4: Simplify right side
    28,109,265,005.95x = 388,740,163,835,822,407,680
  5. Step 5: Solve for x
    x = 388,740,163,835,822,407,680/28,109,265,005.95
  6. Step 6: Final answer
    x = 13,829,609,694.65

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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.