Home / 1,215,787,035.20-1,677,787,543.68-658,870,079.36

Finding the Fourth Proportional to 1,215,787,035.20, 1,677,787,543.68 and 658,870,079.36

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Solution

The fourth proportional to 1,215,787,035.20, 1,677,787,543.68 and 658,870,079.36 is: 909,241,487.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,215,787,035.20 : 1,677,787,543.68 = 658,870,079.36 : x
  2. Step 2: Convert to fraction form
    1,215,787,035.20/1,677,787,543.68 = 658,870,079.36/x
  3. Step 3: Cross multiply
    1,215,787,035.20x = 1,677,787,543.68 × 658,870,079.36
  4. Step 4: Simplify right side
    1,215,787,035.20x = 1,105,444,012,053,661,184
  5. Step 5: Solve for x
    x = 1,105,444,012,053,661,184/1,215,787,035.20
  6. Step 6: Final answer
    x = 909,241,487.24

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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.