Home / 1,988,273,494-2,981,931,871.20-608,099,959.36

Finding the Fourth Proportional to 1,988,273,494, 2,981,931,871.20 and 608,099,959.36

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Solution

The fourth proportional to 1,988,273,494, 2,981,931,871.20 and 608,099,959.36 is: 912,003,632.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,988,273,494 : 2,981,931,871.20 = 608,099,959.36 : x
  2. Step 2: Convert to fraction form
    1,988,273,494/2,981,931,871.20 = 608,099,959.36/x
  3. Step 3: Cross multiply
    1,988,273,494x = 2,981,931,871.20 × 608,099,959.36
  4. Step 4: Simplify right side
    1,988,273,494x = 1,813,312,649,691,008,768
  5. Step 5: Solve for x
    x = 1,813,312,649,691,008,768/1,988,273,494
  6. Step 6: Final answer
    x = 912,003,632.88

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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.