Home / 289,384,538.40-434,076,807.60-267,213,607.20

Finding the Fourth Proportional to 289,384,538.40, 434,076,807.60 and 267,213,607.20

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Solution

The fourth proportional to 289,384,538.40, 434,076,807.60 and 267,213,607.20 is: 400,820,410.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,384,538.40 : 434,076,807.60 = 267,213,607.20 : x
  2. Step 2: Convert to fraction form
    289,384,538.40/434,076,807.60 = 267,213,607.20/x
  3. Step 3: Cross multiply
    289,384,538.40x = 434,076,807.60 × 267,213,607.20
  4. Step 4: Simplify right side
    289,384,538.40x = 115,991,229,560,656,368
  5. Step 5: Solve for x
    x = 115,991,229,560,656,368/289,384,538.40
  6. Step 6: Final answer
    x = 400,820,410.80

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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.