Home / 385,065,964.80-577,536,969.60-112,372,819.20

Finding the Fourth Proportional to 385,065,964.80, 577,536,969.60 and 112,372,819.20

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Solution

The fourth proportional to 385,065,964.80, 577,536,969.60 and 112,372,819.20 is: 168,541,142.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,065,964.80 : 577,536,969.60 = 112,372,819.20 : x
  2. Step 2: Convert to fraction form
    385,065,964.80/577,536,969.60 = 112,372,819.20/x
  3. Step 3: Cross multiply
    385,065,964.80x = 577,536,969.60 × 112,372,819.20
  4. Step 4: Simplify right side
    385,065,964.80x = 64,899,457,466,176,704
  5. Step 5: Solve for x
    x = 64,899,457,466,176,704/385,065,964.80
  6. Step 6: Final answer
    x = 168,541,142.03

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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.