Home / 1,318,729,643.42-1,819,898,085.77-724,039,192.80

Finding the Fourth Proportional to 1,318,729,643.42, 1,819,898,085.77 and 724,039,192.80

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Solution

The fourth proportional to 1,318,729,643.42, 1,819,898,085.77 and 724,039,192.80 is: 999,202,184.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,318,729,643.42 : 1,819,898,085.77 = 724,039,192.80 : x
  2. Step 2: Convert to fraction form
    1,318,729,643.42/1,819,898,085.77 = 724,039,192.80/x
  3. Step 3: Cross multiply
    1,318,729,643.42x = 1,819,898,085.77 × 724,039,192.80
  4. Step 4: Simplify right side
    1,318,729,643.42x = 1,317,677,540,995,555,840
  5. Step 5: Solve for x
    x = 1,317,677,540,995,555,840/1,318,729,643.42
  6. Step 6: Final answer
    x = 999,202,184.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.