Home / 672,808,495.52-928,475,908.84-371,393,990.39

Finding the Fourth Proportional to 672,808,495.52, 928,475,908.84 and 371,393,990.39

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Solution

The fourth proportional to 672,808,495.52, 928,475,908.84 and 371,393,990.39 is: 512,523,808.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    672,808,495.52 : 928,475,908.84 = 371,393,990.39 : x
  2. Step 2: Convert to fraction form
    672,808,495.52/928,475,908.84 = 371,393,990.39/x
  3. Step 3: Cross multiply
    672,808,495.52x = 928,475,908.84 × 371,393,990.39
  4. Step 4: Simplify right side
    672,808,495.52x = 344,830,372,767,851,200
  5. Step 5: Solve for x
    x = 344,830,372,767,851,200/672,808,495.52
  6. Step 6: Final answer
    x = 512,523,808.87

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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.