Home / 660,431,885.67-990,648,013.19-194,093,284.29

Finding the Fourth Proportional to 660,431,885.67, 990,648,013.19 and 194,093,284.29

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Solution

The fourth proportional to 660,431,885.67, 990,648,013.19 and 194,093,284.29 is: 291,139,980.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,431,885.67 : 990,648,013.19 = 194,093,284.29 : x
  2. Step 2: Convert to fraction form
    660,431,885.67/990,648,013.19 = 194,093,284.29/x
  3. Step 3: Cross multiply
    660,431,885.67x = 990,648,013.19 × 194,093,284.29
  4. Step 4: Simplify right side
    660,431,885.67x = 192,278,126,450,724,928
  5. Step 5: Solve for x
    x = 192,278,126,450,724,928/660,431,885.67
  6. Step 6: Final answer
    x = 291,139,980.70

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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.