Home / 478,675,645.74-716,540,815.31-312,320,948.04

Finding the Fourth Proportional to 478,675,645.74, 716,540,815.31 and 312,320,948.04

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Solution

The fourth proportional to 478,675,645.74, 716,540,815.31 and 312,320,948.04 is: 467,520,561.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,675,645.74 : 716,540,815.31 = 312,320,948.04 : x
  2. Step 2: Convert to fraction form
    478,675,645.74/716,540,815.31 = 312,320,948.04/x
  3. Step 3: Cross multiply
    478,675,645.74x = 716,540,815.31 × 312,320,948.04
  4. Step 4: Simplify right side
    478,675,645.74x = 223,790,706,745,412,128
  5. Step 5: Solve for x
    x = 223,790,706,745,412,128/478,675,645.74
  6. Step 6: Final answer
    x = 467,520,561.65

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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.