Home / 15,779,002,542.01-21,775,035,247.72-8,545,106,172.49

Finding the Fourth Proportional to 15,779,002,542.01, 21,775,035,247.72 and 8,545,106,172.49

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Solution

The fourth proportional to 15,779,002,542.01, 21,775,035,247.72 and 8,545,106,172.49 is: 11,792,252,875.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,779,002,542.01 : 21,775,035,247.72 = 8,545,106,172.49 : x
  2. Step 2: Convert to fraction form
    15,779,002,542.01/21,775,035,247.72 = 8,545,106,172.49/x
  3. Step 3: Cross multiply
    15,779,002,542.01x = 21,775,035,247.72 × 8,545,106,172.49
  4. Step 4: Simplify right side
    15,779,002,542.01x = 186,069,988,101,399,412,736
  5. Step 5: Solve for x
    x = 186,069,988,101,399,412,736/15,779,002,542.01
  6. Step 6: Final answer
    x = 11,792,252,875.68

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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.