Home / 548,076,909.20-756,361,006.76-309,957,701.77

Finding the Fourth Proportional to 548,076,909.20, 756,361,006.76 and 309,957,701.77

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Solution

The fourth proportional to 548,076,909.20, 756,361,006.76 and 309,957,701.77 is: 427,750,039.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    548,076,909.20 : 756,361,006.76 = 309,957,701.77 : x
  2. Step 2: Convert to fraction form
    548,076,909.20/756,361,006.76 = 309,957,701.77/x
  3. Step 3: Cross multiply
    548,076,909.20x = 756,361,006.76 × 309,957,701.77
  4. Step 4: Simplify right side
    548,076,909.20x = 234,439,919,362,657,024
  5. Step 5: Solve for x
    x = 234,439,919,362,657,024/548,076,909.20
  6. Step 6: Final answer
    x = 427,750,039.14

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.