Home / 557,154,806.82-768,865,013.90-306,253,829.90

Finding the Fourth Proportional to 557,154,806.82, 768,865,013.90 and 306,253,829.90

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Solution

The fourth proportional to 557,154,806.82, 768,865,013.90 and 306,253,829.90 is: 422,625,547.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,154,806.82 : 768,865,013.90 = 306,253,829.90 : x
  2. Step 2: Convert to fraction form
    557,154,806.82/768,865,013.90 = 306,253,829.90/x
  3. Step 3: Cross multiply
    557,154,806.82x = 768,865,013.90 × 306,253,829.90
  4. Step 4: Simplify right side
    557,154,806.82x = 235,467,855,182,991,712
  5. Step 5: Solve for x
    x = 235,467,855,182,991,712/557,154,806.82
  6. Step 6: Final answer
    x = 422,625,547.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.