Home / 511,126,810.80-766,690,216.20-187,968,692.40

Finding the Fourth Proportional to 511,126,810.80, 766,690,216.20 and 187,968,692.40

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Solution

The fourth proportional to 511,126,810.80, 766,690,216.20 and 187,968,692.40 is: 281,953,038.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,126,810.80 : 766,690,216.20 = 187,968,692.40 : x
  2. Step 2: Convert to fraction form
    511,126,810.80/766,690,216.20 = 187,968,692.40/x
  3. Step 3: Cross multiply
    511,126,810.80x = 766,690,216.20 × 187,968,692.40
  4. Step 4: Simplify right side
    511,126,810.80x = 144,113,757,414,987,312
  5. Step 5: Solve for x
    x = 144,113,757,414,987,312/511,126,810.80
  6. Step 6: Final answer
    x = 281,953,038.60

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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.