Home / 803,326,806.72-1,204,440,103.98-409,090,503.96

Finding the Fourth Proportional to 803,326,806.72, 1,204,440,103.98 and 409,090,503.96

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Solution

The fourth proportional to 803,326,806.72, 1,204,440,103.98 and 409,090,503.96 is: 613,355,616.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    803,326,806.72 : 1,204,440,103.98 = 409,090,503.96 : x
  2. Step 2: Convert to fraction form
    803,326,806.72/1,204,440,103.98 = 409,090,503.96/x
  3. Step 3: Cross multiply
    803,326,806.72x = 1,204,440,103.98 × 409,090,503.96
  4. Step 4: Simplify right side
    803,326,806.72x = 492,725,009,126,812,992
  5. Step 5: Solve for x
    x = 492,725,009,126,812,992/803,326,806.72
  6. Step 6: Final answer
    x = 613,355,616.92

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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.