Home / 472,392,547.70-708,588,821.55-455,173,859.30

Finding the Fourth Proportional to 472,392,547.70, 708,588,821.55 and 455,173,859.30

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Solution

The fourth proportional to 472,392,547.70, 708,588,821.55 and 455,173,859.30 is: 682,760,788.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,392,547.70 : 708,588,821.55 = 455,173,859.30 : x
  2. Step 2: Convert to fraction form
    472,392,547.70/708,588,821.55 = 455,173,859.30/x
  3. Step 3: Cross multiply
    472,392,547.70x = 708,588,821.55 × 455,173,859.30
  4. Step 4: Simplify right side
    472,392,547.70x = 322,531,108,561,752,512
  5. Step 5: Solve for x
    x = 322,531,108,561,752,512/472,392,547.70
  6. Step 6: Final answer
    x = 682,760,788.95

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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.