Home / 545,243,542.94-757,515,813.02-538,705,821.80

Finding the Fourth Proportional to 545,243,542.94, 757,515,813.02 and 538,705,821.80

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Solution

The fourth proportional to 545,243,542.94, 757,515,813.02 and 538,705,821.80 is: 748,432,849.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    545,243,542.94 : 757,515,813.02 = 538,705,821.80 : x
  2. Step 2: Convert to fraction form
    545,243,542.94/757,515,813.02 = 538,705,821.80/x
  3. Step 3: Cross multiply
    545,243,542.94x = 757,515,813.02 × 538,705,821.80
  4. Step 4: Simplify right side
    545,243,542.94x = 408,078,178,579,434,176
  5. Step 5: Solve for x
    x = 408,078,178,579,434,176/545,243,542.94
  6. Step 6: Final answer
    x = 748,432,849.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.