Home / 28,255,782.60-42,320,688.30-21,831,251.40

Finding the Fourth Proportional to 28,255,782.60, 42,320,688.30 and 21,831,251.40

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Solution

The fourth proportional to 28,255,782.60, 42,320,688.30 and 21,831,251.40 is: 32,698,212.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,255,782.60 : 42,320,688.30 = 21,831,251.40 : x
  2. Step 2: Convert to fraction form
    28,255,782.60/42,320,688.30 = 21,831,251.40/x
  3. Step 3: Cross multiply
    28,255,782.60x = 42,320,688.30 × 21,831,251.40
  4. Step 4: Simplify right side
    28,255,782.60x = 923,913,585,698,338.50
  5. Step 5: Solve for x
    x = 923,913,585,698,338.50/28,255,782.60
  6. Step 6: Final answer
    x = 32,698,212.57

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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.