Home / 478,675,682.80-716,540,870.80-312,320,985.04

Finding the Fourth Proportional to 478,675,682.80, 716,540,870.80 and 312,320,985.04

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Solution

The fourth proportional to 478,675,682.80, 716,540,870.80 and 312,320,985.04 is: 467,520,617.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,675,682.80 : 716,540,870.80 = 312,320,985.04 : x
  2. Step 2: Convert to fraction form
    478,675,682.80/716,540,870.80 = 312,320,985.04/x
  3. Step 3: Cross multiply
    478,675,682.80x = 716,540,870.80 × 312,320,985.04
  4. Step 4: Simplify right side
    478,675,682.80x = 223,790,750,589,675,360
  5. Step 5: Solve for x
    x = 223,790,750,589,675,360/478,675,682.80
  6. Step 6: Final answer
    x = 467,520,617.05

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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.