Home / 991,784,250.89-1,487,891,609.93-301,673,568.72

Finding the Fourth Proportional to 991,784,250.89, 1,487,891,609.93 and 301,673,568.72

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Solution

The fourth proportional to 991,784,250.89, 1,487,891,609.93 and 301,673,568.72 is: 452,575,821.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,784,250.89 : 1,487,891,609.93 = 301,673,568.72 : x
  2. Step 2: Convert to fraction form
    991,784,250.89/1,487,891,609.93 = 301,673,568.72/x
  3. Step 3: Cross multiply
    991,784,250.89x = 1,487,891,609.93 × 301,673,568.72
  4. Step 4: Simplify right side
    991,784,250.89x = 448,857,571,836,883,456
  5. Step 5: Solve for x
    x = 448,857,571,836,883,456/991,784,250.89
  6. Step 6: Final answer
    x = 452,575,821.24

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.