Home / 66,857,815.90-92,224,696.91-42,038,709.28

Finding the Fourth Proportional to 66,857,815.90, 92,224,696.91 and 42,038,709.28

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Solution

The fourth proportional to 66,857,815.90, 92,224,696.91 and 42,038,709.28 is: 57,988,840.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,857,815.90 : 92,224,696.91 = 42,038,709.28 : x
  2. Step 2: Convert to fraction form
    66,857,815.90/92,224,696.91 = 42,038,709.28/x
  3. Step 3: Cross multiply
    66,857,815.90x = 92,224,696.91 × 42,038,709.28
  4. Step 4: Simplify right side
    66,857,815.90x = 3,877,007,221,394,849.50
  5. Step 5: Solve for x
    x = 3,877,007,221,394,849.50/66,857,815.90
  6. Step 6: Final answer
    x = 57,988,840.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.