Home / 28,378,330.40-42,520,801.20-16,390,157.60

Finding the Fourth Proportional to 28,378,330.40, 42,520,801.20 and 16,390,157.60

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Solution

The fourth proportional to 28,378,330.40, 42,520,801.20 and 16,390,157.60 is: 24,558,267.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,378,330.40 : 42,520,801.20 = 16,390,157.60 : x
  2. Step 2: Convert to fraction form
    28,378,330.40/42,520,801.20 = 16,390,157.60/x
  3. Step 3: Cross multiply
    28,378,330.40x = 42,520,801.20 × 16,390,157.60
  4. Step 4: Simplify right side
    28,378,330.40x = 696,922,632,946,269.12
  5. Step 5: Solve for x
    x = 696,922,632,946,269.12/28,378,330.40
  6. Step 6: Final answer
    x = 24,558,267.63

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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.