Home / 511,126,811.80-766,690,217.70-187,968,693.40

Finding the Fourth Proportional to 511,126,811.80, 766,690,217.70 and 187,968,693.40

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Solution

The fourth proportional to 511,126,811.80, 766,690,217.70 and 187,968,693.40 is: 281,953,040.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,126,811.80 : 766,690,217.70 = 187,968,693.40 : x
  2. Step 2: Convert to fraction form
    511,126,811.80/766,690,217.70 = 187,968,693.40/x
  3. Step 3: Cross multiply
    511,126,811.80x = 766,690,217.70 × 187,968,693.40
  4. Step 4: Simplify right side
    511,126,811.80x = 144,113,758,463,630,560
  5. Step 5: Solve for x
    x = 144,113,758,463,630,560/511,126,811.80
  6. Step 6: Final answer
    x = 281,953,040.10

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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.