Home / 383,650,641.69-529,416,147.73-216,376,905.13

Finding the Fourth Proportional to 383,650,641.69, 529,416,147.73 and 216,376,905.13

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Solution

The fourth proportional to 383,650,641.69, 529,416,147.73 and 216,376,905.13 is: 298,587,869.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    383,650,641.69 : 529,416,147.73 = 216,376,905.13 : x
  2. Step 2: Convert to fraction form
    383,650,641.69/529,416,147.73 = 216,376,905.13/x
  3. Step 3: Cross multiply
    383,650,641.69x = 529,416,147.73 × 216,376,905.13
  4. Step 4: Simplify right side
    383,650,641.69x = 114,553,427,569,799,792
  5. Step 5: Solve for x
    x = 114,553,427,569,799,792/383,650,641.69
  6. Step 6: Final answer
    x = 298,587,869.07

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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.