Home / 550,284,981.28-824,801,699.76-287,564,466.40

Finding the Fourth Proportional to 550,284,981.28, 824,801,699.76 and 287,564,466.40

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Solution

The fourth proportional to 550,284,981.28, 824,801,699.76 and 287,564,466.40 is: 431,019,687.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,284,981.28 : 824,801,699.76 = 287,564,466.40 : x
  2. Step 2: Convert to fraction form
    550,284,981.28/824,801,699.76 = 287,564,466.40/x
  3. Step 3: Cross multiply
    550,284,981.28x = 824,801,699.76 × 287,564,466.40
  4. Step 4: Simplify right side
    550,284,981.28x = 237,183,660,677,297,376
  5. Step 5: Solve for x
    x = 237,183,660,677,297,376/550,284,981.28
  6. Step 6: Final answer
    x = 431,019,687.52

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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.