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Finding the Fourth Proportional to 207,231,510.80, 290,548,788.40 and 207,231,510.80

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Solution

The fourth proportional to 207,231,510.80, 290,548,788.40 and 207,231,510.80 is: 290,548,788.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,231,510.80 : 290,548,788.40 = 207,231,510.80 : x
  2. Step 2: Convert to fraction form
    207,231,510.80/290,548,788.40 = 207,231,510.80/x
  3. Step 3: Cross multiply
    207,231,510.80x = 290,548,788.40 × 207,231,510.80
  4. Step 4: Simplify right side
    207,231,510.80x = 60,210,864,381,241,512
  5. Step 5: Solve for x
    x = 60,210,864,381,241,512/207,231,510.80
  6. Step 6: Final answer
    x = 290,548,788.40

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.