Home / 74,369,603.20-111,560,830.80-20,516,915.20

Finding the Fourth Proportional to 74,369,603.20, 111,560,830.80 and 20,516,915.20

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Solution

The fourth proportional to 74,369,603.20, 111,560,830.80 and 20,516,915.20 is: 30,777,145.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,369,603.20 : 111,560,830.80 = 20,516,915.20 : x
  2. Step 2: Convert to fraction form
    74,369,603.20/111,560,830.80 = 20,516,915.20/x
  3. Step 3: Cross multiply
    74,369,603.20x = 111,560,830.80 × 20,516,915.20
  4. Step 4: Simplify right side
    74,369,603.20x = 2,288,884,105,165,148
  5. Step 5: Solve for x
    x = 2,288,884,105,165,148/74,369,603.20
  6. Step 6: Final answer
    x = 30,777,145.59

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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.