Home / 478,675,484.15-716,540,574.16-312,320,787.15

Finding the Fourth Proportional to 478,675,484.15, 716,540,574.16 and 312,320,787.15

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Solution

The fourth proportional to 478,675,484.15, 716,540,574.16 and 312,320,787.15 is: 467,520,321.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,675,484.15 : 716,540,574.16 = 312,320,787.15 : x
  2. Step 2: Convert to fraction form
    478,675,484.15/716,540,574.16 = 312,320,787.15/x
  3. Step 3: Cross multiply
    478,675,484.15x = 716,540,574.16 × 312,320,787.15
  4. Step 4: Simplify right side
    478,675,484.15x = 223,790,516,149,641,568
  5. Step 5: Solve for x
    x = 223,790,516,149,641,568/478,675,484.15
  6. Step 6: Final answer
    x = 467,520,321.31

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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.