Home / 986,634,702.81-1,479,836,852.64-396,401,049.18

Finding the Fourth Proportional to 986,634,702.81, 1,479,836,852.64 and 396,401,049.18

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Solution

The fourth proportional to 986,634,702.81, 1,479,836,852.64 and 396,401,049.18 is: 594,555,289.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    986,634,702.81 : 1,479,836,852.64 = 396,401,049.18 : x
  2. Step 2: Convert to fraction form
    986,634,702.81/1,479,836,852.64 = 396,401,049.18/x
  3. Step 3: Cross multiply
    986,634,702.81x = 1,479,836,852.64 × 396,401,049.18
  4. Step 4: Simplify right side
    986,634,702.81x = 586,608,881,001,725,056
  5. Step 5: Solve for x
    x = 586,608,881,001,725,056/986,634,702.81
  6. Step 6: Final answer
    x = 594,555,289.14

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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.