Home / 85,591,995,711.76-128,276,307,507.18-47,817,045,207.42

Finding the Fourth Proportional to 85,591,995,711.76, 128,276,307,507.18 and 47,817,045,207.42

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Solution

The fourth proportional to 85,591,995,711.76, 128,276,307,507.18 and 47,817,045,207.42 is: 71,663,172,988.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,591,995,711.76 : 128,276,307,507.18 = 47,817,045,207.42 : x
  2. Step 2: Convert to fraction form
    85,591,995,711.76/128,276,307,507.18 = 47,817,045,207.42/x
  3. Step 3: Cross multiply
    85,591,995,711.76x = 128,276,307,507.18 × 47,817,045,207.42
  4. Step 4: Simplify right side
    85,591,995,711.76x = 6,133,793,995,111,734,968,320
  5. Step 5: Solve for x
    x = 6,133,793,995,111,734,968,320/85,591,995,711.76
  6. Step 6: Final answer
    x = 71,663,172,988.37

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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.