Home / 69,117,600-103,693,196.16-21,248,544

Finding the Fourth Proportional to 69,117,600, 103,693,196.16 and 21,248,544

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Solution

The fourth proportional to 69,117,600, 103,693,196.16 and 21,248,544 is: 31,877,979.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,117,600 : 103,693,196.16 = 21,248,544 : x
  2. Step 2: Convert to fraction form
    69,117,600/103,693,196.16 = 21,248,544/x
  3. Step 3: Cross multiply
    69,117,600x = 103,693,196.16 × 21,248,544
  4. Step 4: Simplify right side
    69,117,600x = 2,203,329,441,106,391
  5. Step 5: Solve for x
    x = 2,203,329,441,106,391/69,117,600
  6. Step 6: Final answer
    x = 31,877,979.58

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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.