Home / 299,498,288.79-448,949,826.21-208,430,559.03

Finding the Fourth Proportional to 299,498,288.79, 448,949,826.21 and 208,430,559.03

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Solution

The fourth proportional to 299,498,288.79, 448,949,826.21 and 208,430,559.03 is: 312,438,724.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,498,288.79 : 448,949,826.21 = 208,430,559.03 : x
  2. Step 2: Convert to fraction form
    299,498,288.79/448,949,826.21 = 208,430,559.03/x
  3. Step 3: Cross multiply
    299,498,288.79x = 448,949,826.21 × 208,430,559.03
  4. Step 4: Simplify right side
    299,498,288.79x = 93,574,863,253,371,648
  5. Step 5: Solve for x
    x = 93,574,863,253,371,648/299,498,288.79
  6. Step 6: Final answer
    x = 312,438,724.21

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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.