Home / 472,393,358.80-708,590,038.20-213,617,021.20

Finding the Fourth Proportional to 472,393,358.80, 708,590,038.20 and 213,617,021.20

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Solution

The fourth proportional to 472,393,358.80, 708,590,038.20 and 213,617,021.20 is: 320,425,531.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,393,358.80 : 708,590,038.20 = 213,617,021.20 : x
  2. Step 2: Convert to fraction form
    472,393,358.80/708,590,038.20 = 213,617,021.20/x
  3. Step 3: Cross multiply
    472,393,358.80x = 708,590,038.20 × 213,617,021.20
  4. Step 4: Simplify right side
    472,393,358.80x = 151,366,893,212,278,208
  5. Step 5: Solve for x
    x = 151,366,893,212,278,208/472,393,358.80
  6. Step 6: Final answer
    x = 320,425,531.80

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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.