Home / 315,235,222.80-472,056,571.80-206,943,536.40

Finding the Fourth Proportional to 315,235,222.80, 472,056,571.80 and 206,943,536.40

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Solution

The fourth proportional to 315,235,222.80, 472,056,571.80 and 206,943,536.40 is: 309,892,579.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,235,222.80 : 472,056,571.80 = 206,943,536.40 : x
  2. Step 2: Convert to fraction form
    315,235,222.80/472,056,571.80 = 206,943,536.40/x
  3. Step 3: Cross multiply
    315,235,222.80x = 472,056,571.80 × 206,943,536.40
  4. Step 4: Simplify right side
    315,235,222.80x = 97,689,056,349,152,512
  5. Step 5: Solve for x
    x = 97,689,056,349,152,512/315,235,222.80
  6. Step 6: Final answer
    x = 309,892,579.52

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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.