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Finding the Third Proportional to 58,689,278 and 128,715,952

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Solution

The third proportional to 58,689,278 and 128,715,952 is: 282,296,815.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,689,278 : 128,715,952 = 128,715,952 : x
  2. Step 2: Convert to fraction form
    58,689,278/128,715,952 = 128,715,952/x
  3. Step 3: Cross multiply
    58,689,278x = 128,715,952 × 128,715,952
  4. Step 4: Simplify right side
    58,689,278x = 16,567,796,299,266,304
  5. Step 5: Solve for x
    x = 16,567,796,299,266,304/58,689,278
  6. Step 6: Final answer
    x = 282,296,815.77

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.