Home / 478,675,611.59-716,540,764.21-312,320,913.91

Finding the Fourth Proportional to 478,675,611.59, 716,540,764.21 and 312,320,913.91

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Solution

The fourth proportional to 478,675,611.59, 716,540,764.21 and 312,320,913.91 is: 467,520,510.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,675,611.59 : 716,540,764.21 = 312,320,913.91 : x
  2. Step 2: Convert to fraction form
    478,675,611.59/716,540,764.21 = 312,320,913.91/x
  3. Step 3: Cross multiply
    478,675,611.59x = 716,540,764.21 × 312,320,913.91
  4. Step 4: Simplify right side
    478,675,611.59x = 223,790,666,329,264,864
  5. Step 5: Solve for x
    x = 223,790,666,329,264,864/478,675,611.59
  6. Step 6: Final answer
    x = 467,520,510.58

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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.