Home / 766,520,041.19-1,149,789,281.96-213,788,813.52

Finding the Fourth Proportional to 766,520,041.19, 1,149,789,281.96 and 213,788,813.52

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Solution

The fourth proportional to 766,520,041.19, 1,149,789,281.96 and 213,788,813.52 is: 320,685,791.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    766,520,041.19 : 1,149,789,281.96 = 213,788,813.52 : x
  2. Step 2: Convert to fraction form
    766,520,041.19/1,149,789,281.96 = 213,788,813.52/x
  3. Step 3: Cross multiply
    766,520,041.19x = 1,149,789,281.96 × 213,788,813.52
  4. Step 4: Simplify right side
    766,520,041.19x = 245,812,086,385,416,768
  5. Step 5: Solve for x
    x = 245,812,086,385,416,768/766,520,041.19
  6. Step 6: Final answer
    x = 320,685,791.86

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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.