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Finding the Fourth Proportional to 43,699,594.80, 65,624,041.80 and 28,620,375.60

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Solution

The fourth proportional to 43,699,594.80, 65,624,041.80 and 28,620,375.60 is: 42,979,454.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,699,594.80 : 65,624,041.80 = 28,620,375.60 : x
  2. Step 2: Convert to fraction form
    43,699,594.80/65,624,041.80 = 28,620,375.60/x
  3. Step 3: Cross multiply
    43,699,594.80x = 65,624,041.80 × 28,620,375.60
  4. Step 4: Simplify right side
    43,699,594.80x = 1,878,184,724,706,100
  5. Step 5: Solve for x
    x = 1,878,184,724,706,100/43,699,594.80
  6. Step 6: Final answer
    x = 42,979,454.00

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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.