Home / 51,376,141.40-77,064,212.10-21,105,728.60

Finding the Fourth Proportional to 51,376,141.40, 77,064,212.10 and 21,105,728.60

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Solution

The fourth proportional to 51,376,141.40, 77,064,212.10 and 21,105,728.60 is: 31,658,592.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,376,141.40 : 77,064,212.10 = 21,105,728.60 : x
  2. Step 2: Convert to fraction form
    51,376,141.40/77,064,212.10 = 21,105,728.60/x
  3. Step 3: Cross multiply
    51,376,141.40x = 77,064,212.10 × 21,105,728.60
  4. Step 4: Simplify right side
    51,376,141.40x = 1,626,496,345,355,436
  5. Step 5: Solve for x
    x = 1,626,496,345,355,436/51,376,141.40
  6. Step 6: Final answer
    x = 31,658,592.90

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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.