Home / 1,227,189,881.70-1,693,473,108.66-691,329,064.05

Finding the Fourth Proportional to 1,227,189,881.70, 1,693,473,108.66 and 691,329,064.05

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Solution

The fourth proportional to 1,227,189,881.70, 1,693,473,108.66 and 691,329,064.05 is: 954,006,545.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,227,189,881.70 : 1,693,473,108.66 = 691,329,064.05 : x
  2. Step 2: Convert to fraction form
    1,227,189,881.70/1,693,473,108.66 = 691,329,064.05/x
  3. Step 3: Cross multiply
    1,227,189,881.70x = 1,693,473,108.66 × 691,329,064.05
  4. Step 4: Simplify right side
    1,227,189,881.70x = 1,170,747,179,203,761,664
  5. Step 5: Solve for x
    x = 1,170,747,179,203,761,664/1,227,189,881.70
  6. Step 6: Final answer
    x = 954,006,545.08

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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.