Home / 51,856,886.40-77,723,121.60-21,549,148.80

Finding the Fourth Proportional to 51,856,886.40, 77,723,121.60 and 21,549,148.80

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Solution

The fourth proportional to 51,856,886.40, 77,723,121.60 and 21,549,148.80 is: 32,297,872.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,856,886.40 : 77,723,121.60 = 21,549,148.80 : x
  2. Step 2: Convert to fraction form
    51,856,886.40/77,723,121.60 = 21,549,148.80/x
  3. Step 3: Cross multiply
    51,856,886.40x = 77,723,121.60 × 21,549,148.80
  4. Step 4: Simplify right side
    51,856,886.40x = 1,674,867,112,558,894
  5. Step 5: Solve for x
    x = 1,674,867,112,558,894/51,856,886.40
  6. Step 6: Final answer
    x = 32,297,872.64

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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.