Home / 1,038,962,529.72-1,560,930,016.70-666,200,740.15

Finding the Fourth Proportional to 1,038,962,529.72, 1,560,930,016.70 and 666,200,740.15

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Solution

The fourth proportional to 1,038,962,529.72, 1,560,930,016.70 and 666,200,740.15 is: 1,000,895,318.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,038,962,529.72 : 1,560,930,016.70 = 666,200,740.15 : x
  2. Step 2: Convert to fraction form
    1,038,962,529.72/1,560,930,016.70 = 666,200,740.15/x
  3. Step 3: Cross multiply
    1,038,962,529.72x = 1,560,930,016.70 × 666,200,740.15
  4. Step 4: Simplify right side
    1,038,962,529.72x = 1,039,892,732,438,989,696
  5. Step 5: Solve for x
    x = 1,039,892,732,438,989,696/1,038,962,529.72
  6. Step 6: Final answer
    x = 1,000,895,318.83

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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.