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Finding the Fourth Proportional to 555,254,413.12, 765,804,299.04 and 488,129,848.96

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Solution

The fourth proportional to 555,254,413.12, 765,804,299.04 and 488,129,848.96 is: 673,226,412.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    555,254,413.12 : 765,804,299.04 = 488,129,848.96 : x
  2. Step 2: Convert to fraction form
    555,254,413.12/765,804,299.04 = 488,129,848.96/x
  3. Step 3: Cross multiply
    555,254,413.12x = 765,804,299.04 × 488,129,848.96
  4. Step 4: Simplify right side
    555,254,413.12x = 373,811,936,823,313,856
  5. Step 5: Solve for x
    x = 373,811,936,823,313,856/555,254,413.12
  6. Step 6: Final answer
    x = 673,226,412.96

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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.