Home / 51,509,915.40-77,264,873.10-13,174,429.80

Finding the Fourth Proportional to 51,509,915.40, 77,264,873.10 and 13,174,429.80

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Solution

The fourth proportional to 51,509,915.40, 77,264,873.10 and 13,174,429.80 is: 19,761,644.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,509,915.40 : 77,264,873.10 = 13,174,429.80 : x
  2. Step 2: Convert to fraction form
    51,509,915.40/77,264,873.10 = 13,174,429.80/x
  3. Step 3: Cross multiply
    51,509,915.40x = 77,264,873.10 × 13,174,429.80
  4. Step 4: Simplify right side
    51,509,915.40x = 1,017,920,646,661,858.38
  5. Step 5: Solve for x
    x = 1,017,920,646,661,858.38/51,509,915.40
  6. Step 6: Final answer
    x = 19,761,644.70

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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.