Home / 655,841,899.20-983,621,131.20-287,376,139.20

Finding the Fourth Proportional to 655,841,899.20, 983,621,131.20 and 287,376,139.20

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Solution

The fourth proportional to 655,841,899.20, 983,621,131.20 and 287,376,139.20 is: 431,002,111.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,841,899.20 : 983,621,131.20 = 287,376,139.20 : x
  2. Step 2: Convert to fraction form
    655,841,899.20/983,621,131.20 = 287,376,139.20/x
  3. Step 3: Cross multiply
    655,841,899.20x = 983,621,131.20 × 287,376,139.20
  4. Step 4: Simplify right side
    655,841,899.20x = 282,669,243,119,792,672
  5. Step 5: Solve for x
    x = 282,669,243,119,792,672/655,841,899.20
  6. Step 6: Final answer
    x = 431,002,111.13

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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.