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Finding the Third Proportional to 258,410,548 and 387,804,816

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Solution

The third proportional to 258,410,548 and 387,804,816 is: 581,990,853.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,410,548 : 387,804,816 = 387,804,816 : x
  2. Step 2: Convert to fraction form
    258,410,548/387,804,816 = 387,804,816/x
  3. Step 3: Cross multiply
    258,410,548x = 387,804,816 × 387,804,816
  4. Step 4: Simplify right side
    258,410,548x = 150,392,575,312,793,856
  5. Step 5: Solve for x
    x = 150,392,575,312,793,856/258,410,548
  6. Step 6: Final answer
    x = 581,990,853.22

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.