Home / 699,860,488.50-965,836,796.88-402,502,932.36

Finding the Fourth Proportional to 699,860,488.50, 965,836,796.88 and 402,502,932.36

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Solution

The fourth proportional to 699,860,488.50, 965,836,796.88 and 402,502,932.36 is: 555,470,910.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    699,860,488.50 : 965,836,796.88 = 402,502,932.36 : x
  2. Step 2: Convert to fraction form
    699,860,488.50/965,836,796.88 = 402,502,932.36/x
  3. Step 3: Cross multiply
    699,860,488.50x = 965,836,796.88 × 402,502,932.36
  4. Step 4: Simplify right side
    699,860,488.50x = 388,752,142,925,389,696
  5. Step 5: Solve for x
    x = 388,752,142,925,389,696/699,860,488.50
  6. Step 6: Final answer
    x = 555,470,910.72

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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.