Home / 522,066,299.90-720,437,117.00-287,117,045.82

Finding the Fourth Proportional to 522,066,299.90, 720,437,117.00 and 287,117,045.82

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Solution

The fourth proportional to 522,066,299.90, 720,437,117.00 and 287,117,045.82 is: 396,213,616.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    522,066,299.90 : 720,437,117.00 = 287,117,045.82 : x
  2. Step 2: Convert to fraction form
    522,066,299.90/720,437,117.00 = 287,117,045.82/x
  3. Step 3: Cross multiply
    522,066,299.90x = 720,437,117.00 × 287,117,045.82
  4. Step 4: Simplify right side
    522,066,299.90x = 206,849,776,730,682,112
  5. Step 5: Solve for x
    x = 206,849,776,730,682,112/522,066,299.90
  6. Step 6: Final answer
    x = 396,213,616.49

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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.