Home / 1,269,454,686.78-1,903,312,726.83-646,463,985.96

Finding the Fourth Proportional to 1,269,454,686.78, 1,903,312,726.83 and 646,463,985.96

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Solution

The fourth proportional to 1,269,454,686.78, 1,903,312,726.83 and 646,463,985.96 is: 969,253,290.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,269,454,686.78 : 1,903,312,726.83 = 646,463,985.96 : x
  2. Step 2: Convert to fraction form
    1,269,454,686.78/1,903,312,726.83 = 646,463,985.96/x
  3. Step 3: Cross multiply
    1,269,454,686.78x = 1,903,312,726.83 × 646,463,985.96
  4. Step 4: Simplify right side
    1,269,454,686.78x = 1,230,423,131,914,918,400
  5. Step 5: Solve for x
    x = 1,230,423,131,914,918,400/1,269,454,686.78
  6. Step 6: Final answer
    x = 969,253,290.19

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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.