Home / 383,948,985.69-529,864,636.35-216,691,089.39

Finding the Fourth Proportional to 383,948,985.69, 529,864,636.35 and 216,691,089.39

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Solution

The fourth proportional to 383,948,985.69, 529,864,636.35 and 216,691,089.39 is: 299,042,189.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,948,985.69 : 529,864,636.35 = 216,691,089.39 : x
  2. Step 2: Convert to fraction form
    383,948,985.69/529,864,636.35 = 216,691,089.39/x
  3. Step 3: Cross multiply
    383,948,985.69x = 529,864,636.35 × 216,691,089.39
  4. Step 4: Simplify right side
    383,948,985.69x = 114,816,945,279,917,696
  5. Step 5: Solve for x
    x = 114,816,945,279,917,696/383,948,985.69
  6. Step 6: Final answer
    x = 299,042,189.35

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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.