Home / 522,302,935.41-720,778,027.03-287,348,555.45

Finding the Fourth Proportional to 522,302,935.41, 720,778,027.03 and 287,348,555.45

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Solution

The fourth proportional to 522,302,935.41, 720,778,027.03 and 287,348,555.45 is: 396,540,993.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,302,935.41 : 720,778,027.03 = 287,348,555.45 : x
  2. Step 2: Convert to fraction form
    522,302,935.41/720,778,027.03 = 287,348,555.45/x
  3. Step 3: Cross multiply
    522,302,935.41x = 720,778,027.03 × 287,348,555.45
  4. Step 4: Simplify right side
    522,302,935.41x = 207,114,524,868,255,136
  5. Step 5: Solve for x
    x = 207,114,524,868,255,136/522,302,935.41
  6. Step 6: Final answer
    x = 396,540,993.41

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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.