Home / 427,432,933.60-641,149,400.40-291,384,037.60

Finding the Fourth Proportional to 427,432,933.60, 641,149,400.40 and 291,384,037.60

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Solution

The fourth proportional to 427,432,933.60, 641,149,400.40 and 291,384,037.60 is: 437,076,056.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    427,432,933.60 : 641,149,400.40 = 291,384,037.60 : x
  2. Step 2: Convert to fraction form
    427,432,933.60/641,149,400.40 = 291,384,037.60/x
  3. Step 3: Cross multiply
    427,432,933.60x = 641,149,400.40 × 291,384,037.60
  4. Step 4: Simplify right side
    427,432,933.60x = 186,820,700,993,371,072
  5. Step 5: Solve for x
    x = 186,820,700,993,371,072/427,432,933.60
  6. Step 6: Final answer
    x = 437,076,056.40

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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.