Home / 765,696,031.80-1,148,544,047.70-305,705,196.60

Finding the Fourth Proportional to 765,696,031.80, 1,148,544,047.70 and 305,705,196.60

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Solution

The fourth proportional to 765,696,031.80, 1,148,544,047.70 and 305,705,196.60 is: 458,557,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,696,031.80 : 1,148,544,047.70 = 305,705,196.60 : x
  2. Step 2: Convert to fraction form
    765,696,031.80/1,148,544,047.70 = 305,705,196.60/x
  3. Step 3: Cross multiply
    765,696,031.80x = 1,148,544,047.70 × 305,705,196.60
  4. Step 4: Simplify right side
    765,696,031.80x = 351,115,883,905,888,320
  5. Step 5: Solve for x
    x = 351,115,883,905,888,320/765,696,031.80
  6. Step 6: Final answer
    x = 458,557,794.90

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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.