Home / 1,458,573,943.92-2,012,078,818.71-988,514,510.64

Finding the Fourth Proportional to 1,458,573,943.92, 2,012,078,818.71 and 988,514,510.64

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Solution

The fourth proportional to 1,458,573,943.92, 2,012,078,818.71 and 988,514,510.64 is: 1,363,639,544.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,458,573,943.92 : 2,012,078,818.71 = 988,514,510.64 : x
  2. Step 2: Convert to fraction form
    1,458,573,943.92/2,012,078,818.71 = 988,514,510.64/x
  3. Step 3: Cross multiply
    1,458,573,943.92x = 2,012,078,818.71 × 988,514,510.64
  4. Step 4: Simplify right side
    1,458,573,943.92x = 1,988,969,108,846,224,896
  5. Step 5: Solve for x
    x = 1,988,969,108,846,224,896/1,458,573,943.92
  6. Step 6: Final answer
    x = 1,363,639,544.73

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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.