Home / 57,216,228.60-85,824,342.90-21,307,006.20

Finding the Fourth Proportional to 57,216,228.60, 85,824,342.90 and 21,307,006.20

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Solution

The fourth proportional to 57,216,228.60, 85,824,342.90 and 21,307,006.20 is: 31,960,509.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,216,228.60 : 85,824,342.90 = 21,307,006.20 : x
  2. Step 2: Convert to fraction form
    57,216,228.60/85,824,342.90 = 21,307,006.20/x
  3. Step 3: Cross multiply
    57,216,228.60x = 85,824,342.90 × 21,307,006.20
  4. Step 4: Simplify right side
    57,216,228.60x = 1,828,659,806,281,226
  5. Step 5: Solve for x
    x = 1,828,659,806,281,226/57,216,228.60
  6. Step 6: Final answer
    x = 31,960,509.30

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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.