Home / 261,333,072.73-392,058,665.40-86,455,695.85

Finding the Fourth Proportional to 261,333,072.73, 392,058,665.40 and 86,455,695.85

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Solution

The fourth proportional to 261,333,072.73, 392,058,665.40 and 86,455,695.85 is: 129,703,081.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,333,072.73 : 392,058,665.40 = 86,455,695.85 : x
  2. Step 2: Convert to fraction form
    261,333,072.73/392,058,665.40 = 86,455,695.85/x
  3. Step 3: Cross multiply
    261,333,072.73x = 392,058,665.40 × 86,455,695.85
  4. Step 4: Simplify right side
    261,333,072.73x = 33,895,704,731,179,316
  5. Step 5: Solve for x
    x = 33,895,704,731,179,316/261,333,072.73
  6. Step 6: Final answer
    x = 129,703,081.12

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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.