Home / 538,118,785.80-742,603,920.03-290,600,118.18

Finding the Fourth Proportional to 538,118,785.80, 742,603,920.03 and 290,600,118.18

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Solution

The fourth proportional to 538,118,785.80, 742,603,920.03 and 290,600,118.18 is: 401,028,160.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    538,118,785.80 : 742,603,920.03 = 290,600,118.18 : x
  2. Step 2: Convert to fraction form
    538,118,785.80/742,603,920.03 = 290,600,118.18/x
  3. Step 3: Cross multiply
    538,118,785.80x = 742,603,920.03 × 290,600,118.18
  4. Step 4: Simplify right side
    538,118,785.80x = 215,800,786,921,649,280
  5. Step 5: Solve for x
    x = 215,800,786,921,649,280/538,118,785.80
  6. Step 6: Final answer
    x = 401,028,160.73

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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.