Home / 85,391,998,867.65-128,062,210,126.95-25,684,811,108.24

Finding the Fourth Proportional to 85,391,998,867.65, 128,062,210,126.95 and 25,684,811,108.24

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Solution

The fourth proportional to 85,391,998,867.65, 128,062,210,126.95 and 25,684,811,108.24 is: 38,519,459,912.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,391,998,867.65 : 128,062,210,126.95 = 25,684,811,108.24 : x
  2. Step 2: Convert to fraction form
    85,391,998,867.65/128,062,210,126.95 = 25,684,811,108.24/x
  3. Step 3: Cross multiply
    85,391,998,867.65x = 128,062,210,126.95 × 25,684,811,108.24
  4. Step 4: Simplify right side
    85,391,998,867.65x = 3,289,253,677,214,834,622,464
  5. Step 5: Solve for x
    x = 3,289,253,677,214,834,622,464/85,391,998,867.65
  6. Step 6: Final answer
    x = 38,519,459,912.31

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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.