Home / 1,172,227,429.10-1,617,677,035.26-643,625,653.34

Finding the Fourth Proportional to 1,172,227,429.10, 1,617,677,035.26 and 643,625,653.34

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Solution

The fourth proportional to 1,172,227,429.10, 1,617,677,035.26 and 643,625,653.34 is: 888,205,149.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,227,429.10 : 1,617,677,035.26 = 643,625,653.34 : x
  2. Step 2: Convert to fraction form
    1,172,227,429.10/1,617,677,035.26 = 643,625,653.34/x
  3. Step 3: Cross multiply
    1,172,227,429.10x = 1,617,677,035.26 × 643,625,653.34
  4. Step 4: Simplify right side
    1,172,227,429.10x = 1,041,178,438,712,331,776
  5. Step 5: Solve for x
    x = 1,041,178,438,712,331,776/1,172,227,429.10
  6. Step 6: Final answer
    x = 888,205,149.33

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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.