Home / 74,518,928.32-111,771,988.88-45,365,200.44

Finding the Fourth Proportional to 74,518,928.32, 111,771,988.88 and 45,365,200.44

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Solution

The fourth proportional to 74,518,928.32, 111,771,988.88 and 45,365,200.44 is: 68,043,902.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,518,928.32 : 111,771,988.88 = 45,365,200.44 : x
  2. Step 2: Convert to fraction form
    74,518,928.32/111,771,988.88 = 45,365,200.44/x
  3. Step 3: Cross multiply
    74,518,928.32x = 111,771,988.88 × 45,365,200.44
  4. Step 4: Simplify right side
    74,518,928.32x = 5,070,558,679,118,651
  5. Step 5: Solve for x
    x = 5,070,558,679,118,651/74,518,928.32
  6. Step 6: Final answer
    x = 68,043,902.31

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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.