Home / 64,415,307.78-96,631,934.04-20,697,381.90

Finding the Fourth Proportional to 64,415,307.78, 96,631,934.04 and 20,697,381.90

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Solution

The fourth proportional to 64,415,307.78, 96,631,934.04 and 20,697,381.90 is: 31,048,955.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,415,307.78 : 96,631,934.04 = 20,697,381.90 : x
  2. Step 2: Convert to fraction form
    64,415,307.78/96,631,934.04 = 20,697,381.90/x
  3. Step 3: Cross multiply
    64,415,307.78x = 96,631,934.04 × 20,697,381.90
  4. Step 4: Simplify right side
    64,415,307.78x = 2,000,028,042,561,489.75
  5. Step 5: Solve for x
    x = 2,000,028,042,561,489.75/64,415,307.78
  6. Step 6: Final answer
    x = 31,048,955.78

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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.