Home / 30,928,007.20-42,681,178.56-16,989,949.60

Finding the Fourth Proportional to 30,928,007.20, 42,681,178.56 and 16,989,949.60

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Solution

The fourth proportional to 30,928,007.20, 42,681,178.56 and 16,989,949.60 is: 23,446,420.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,928,007.20 : 42,681,178.56 = 16,989,949.60 : x
  2. Step 2: Convert to fraction form
    30,928,007.20/42,681,178.56 = 16,989,949.60/x
  3. Step 3: Cross multiply
    30,928,007.20x = 42,681,178.56 × 16,989,949.60
  4. Step 4: Simplify right side
    30,928,007.20x = 725,151,072,603,000.62
  5. Step 5: Solve for x
    x = 725,151,072,603,000.62/30,928,007.20
  6. Step 6: Final answer
    x = 23,446,420.84

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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.