Home / 28,109,265,006.20-42,162,412,522.77-9,220,064,521.69

Finding the Fourth Proportional to 28,109,265,006.20, 42,162,412,522.77 and 9,220,064,521.69

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Solution

The fourth proportional to 28,109,265,006.20, 42,162,412,522.77 and 9,220,064,521.69 is: 13,829,609,695.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,109,265,006.20 : 42,162,412,522.77 = 9,220,064,521.69 : x
  2. Step 2: Convert to fraction form
    28,109,265,006.20/42,162,412,522.77 = 9,220,064,521.69/x
  3. Step 3: Cross multiply
    28,109,265,006.20x = 42,162,412,522.77 × 9,220,064,521.69
  4. Step 4: Simplify right side
    28,109,265,006.20x = 388,740,163,849,838,985,216
  5. Step 5: Solve for x
    x = 388,740,163,849,838,985,216/28,109,265,006.20
  6. Step 6: Final answer
    x = 13,829,609,695.03

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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.