Home / 31,516,290.76-43,512,722.76-19,771,661.20

Finding the Fourth Proportional to 31,516,290.76, 43,512,722.76 and 19,771,661.20

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Solution

The fourth proportional to 31,516,290.76, 43,512,722.76 and 19,771,661.20 is: 27,297,590.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,516,290.76 : 43,512,722.76 = 19,771,661.20 : x
  2. Step 2: Convert to fraction form
    31,516,290.76/43,512,722.76 = 19,771,661.20/x
  3. Step 3: Cross multiply
    31,516,290.76x = 43,512,722.76 × 19,771,661.20
  4. Step 4: Simplify right side
    31,516,290.76x = 860,318,812,300,248.88
  5. Step 5: Solve for x
    x = 860,318,812,300,248.88/31,516,290.76
  6. Step 6: Final answer
    x = 27,297,590.91

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1.5x scale

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.