Home / 85,591,995,709.25-128,276,307,503.43-47,817,045,204.92

Finding the Fourth Proportional to 85,591,995,709.25, 128,276,307,503.43 and 47,817,045,204.92

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Solution

The fourth proportional to 85,591,995,709.25, 128,276,307,503.43 and 47,817,045,204.92 is: 71,663,172,984.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,591,995,709.25 : 128,276,307,503.43 = 47,817,045,204.92 : x
  2. Step 2: Convert to fraction form
    85,591,995,709.25/128,276,307,503.43 = 47,817,045,204.92/x
  3. Step 3: Cross multiply
    85,591,995,709.25x = 128,276,307,503.43 × 47,817,045,204.92
  4. Step 4: Simplify right side
    85,591,995,709.25x = 6,133,793,994,611,346,112,512
  5. Step 5: Solve for x
    x = 6,133,793,994,611,346,112,512/85,591,995,709.25
  6. Step 6: Final answer
    x = 71,663,172,984.62

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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.