Home / 655,841,900.20-983,621,132.70-287,376,140.20

Finding the Fourth Proportional to 655,841,900.20, 983,621,132.70 and 287,376,140.20

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Solution

The fourth proportional to 655,841,900.20, 983,621,132.70 and 287,376,140.20 is: 431,002,112.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,841,900.20 : 983,621,132.70 = 287,376,140.20 : x
  2. Step 2: Convert to fraction form
    655,841,900.20/983,621,132.70 = 287,376,140.20/x
  3. Step 3: Cross multiply
    655,841,900.20x = 983,621,132.70 × 287,376,140.20
  4. Step 4: Simplify right side
    655,841,900.20x = 282,669,244,534,478,016
  5. Step 5: Solve for x
    x = 282,669,244,534,478,016/655,841,900.20
  6. Step 6: Final answer
    x = 431,002,112.63

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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.