Home / 20,990,155,007.75-28,812,226,922.62-18,558,015,271.25

Finding the Fourth Proportional to 20,990,155,007.75, 28,812,226,922.62 and 18,558,015,271.25

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Solution

The fourth proportional to 20,990,155,007.75, 28,812,226,922.62 and 18,558,015,271.25 is: 25,473,739,809.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,990,155,007.75 : 28,812,226,922.62 = 18,558,015,271.25 : x
  2. Step 2: Convert to fraction form
    20,990,155,007.75/28,812,226,922.62 = 18,558,015,271.25/x
  3. Step 3: Cross multiply
    20,990,155,007.75x = 28,812,226,922.62 × 18,558,015,271.25
  4. Step 4: Simplify right side
    20,990,155,007.75x = 534,697,747,228,521,136,128
  5. Step 5: Solve for x
    x = 534,697,747,228,521,136,128/20,990,155,007.75
  6. Step 6: Final answer
    x = 25,473,739,809.51

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.