Home / 57,216,221.60-85,824,332.40-21,306,999.20

Finding the Fourth Proportional to 57,216,221.60, 85,824,332.40 and 21,306,999.20

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Solution

The fourth proportional to 57,216,221.60, 85,824,332.40 and 21,306,999.20 is: 31,960,498.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,216,221.60 : 85,824,332.40 = 21,306,999.20 : x
  2. Step 2: Convert to fraction form
    57,216,221.60/85,824,332.40 = 21,306,999.20/x
  3. Step 3: Cross multiply
    57,216,221.60x = 85,824,332.40 × 21,306,999.20
  4. Step 4: Simplify right side
    57,216,221.60x = 1,828,658,981,787,334.25
  5. Step 5: Solve for x
    x = 1,828,658,981,787,334.25/57,216,221.60
  6. Step 6: Final answer
    x = 31,960,498.80

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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.