Home / 426,492,029.02-639,738,043.53-349,007,931.22

Finding the Fourth Proportional to 426,492,029.02, 639,738,043.53 and 349,007,931.22

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Solution

The fourth proportional to 426,492,029.02, 639,738,043.53 and 349,007,931.22 is: 523,511,896.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,492,029.02 : 639,738,043.53 = 349,007,931.22 : x
  2. Step 2: Convert to fraction form
    426,492,029.02/639,738,043.53 = 349,007,931.22/x
  3. Step 3: Cross multiply
    426,492,029.02x = 639,738,043.53 × 349,007,931.22
  4. Step 4: Simplify right side
    426,492,029.02x = 223,273,651,095,135,616
  5. Step 5: Solve for x
    x = 223,273,651,095,135,616/426,492,029.02
  6. Step 6: Final answer
    x = 523,511,896.83

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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.