Home / 1,220,172,723.12-1,661,311,737.12-1,216,298,518.22

Finding the Fourth Proportional to 1,220,172,723.12, 1,661,311,737.12 and 1,216,298,518.22

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Solution

The fourth proportional to 1,220,172,723.12, 1,661,311,737.12 and 1,216,298,518.22 is: 1,656,036,859.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,172,723.12 : 1,661,311,737.12 = 1,216,298,518.22 : x
  2. Step 2: Convert to fraction form
    1,220,172,723.12/1,661,311,737.12 = 1,216,298,518.22/x
  3. Step 3: Cross multiply
    1,220,172,723.12x = 1,661,311,737.12 × 1,216,298,518.22
  4. Step 4: Simplify right side
    1,220,172,723.12x = 2,020,651,004,160,550,144
  5. Step 5: Solve for x
    x = 2,020,651,004,160,550,144/1,220,172,723.12
  6. Step 6: Final answer
    x = 1,656,036,859.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.