Home / 1,187,479,570.80-1,781,913,947.40-497,328,855.60

Finding the Fourth Proportional to 1,187,479,570.80, 1,781,913,947.40 and 497,328,855.60

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Solution

The fourth proportional to 1,187,479,570.80, 1,781,913,947.40 and 497,328,855.60 is: 746,284,185.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,187,479,570.80 : 1,781,913,947.40 = 497,328,855.60 : x
  2. Step 2: Convert to fraction form
    1,187,479,570.80/1,781,913,947.40 = 497,328,855.60/x
  3. Step 3: Cross multiply
    1,187,479,570.80x = 1,781,913,947.40 × 497,328,855.60
  4. Step 4: Simplify right side
    1,187,479,570.80x = 886,197,224,238,120,704
  5. Step 5: Solve for x
    x = 886,197,224,238,120,704/1,187,479,570.80
  6. Step 6: Final answer
    x = 746,284,185.45

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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.