Home / 766,507,153.88-1,149,769,854.77-213,775,952.73

Finding the Fourth Proportional to 766,507,153.88, 1,149,769,854.77 and 213,775,952.73

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Solution

The fourth proportional to 766,507,153.88, 1,149,769,854.77 and 213,775,952.73 is: 320,666,473.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,507,153.88 : 1,149,769,854.77 = 213,775,952.73 : x
  2. Step 2: Convert to fraction form
    766,507,153.88/1,149,769,854.77 = 213,775,952.73/x
  3. Step 3: Cross multiply
    766,507,153.88x = 1,149,769,854.77 × 213,775,952.73
  4. Step 4: Simplify right side
    766,507,153.88x = 245,793,146,118,309,984
  5. Step 5: Solve for x
    x = 245,793,146,118,309,984/766,507,153.88
  6. Step 6: Final answer
    x = 320,666,473.72

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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.