Home / 12,489,091,679,969-18,711,474,674,135-5,220,571,445,452.80

Finding the Fourth Proportional to 12,489,091,679,969, 18,711,474,674,135 and 5,220,571,445,452.80

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Solution

The fourth proportional to 12,489,091,679,969, 18,711,474,674,135 and 5,220,571,445,452.80 is: 7,821,592,865,938.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,489,091,679,969 : 18,711,474,674,135 = 5,220,571,445,452.80 : x
  2. Step 2: Convert to fraction form
    12,489,091,679,969/18,711,474,674,135 = 5,220,571,445,452.80/x
  3. Step 3: Cross multiply
    12,489,091,679,969x = 18,711,474,674,135 × 5,220,571,445,452.80
  4. Step 4: Simplify right side
    12,489,091,679,969x = 97,684,590,386,102,404,632,281,088
  5. Step 5: Solve for x
    x = 97,684,590,386,102,404,632,281,088/12,489,091,679,969
  6. Step 6: Final answer
    x = 7,821,592,865,938.90

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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.