Home / 1,172,219,745.60-1,757,956,305.60-385,090,689.60

Finding the Fourth Proportional to 1,172,219,745.60, 1,757,956,305.60 and 385,090,689.60

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Solution

The fourth proportional to 1,172,219,745.60, 1,757,956,305.60 and 385,090,689.60 is: 577,513,395.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,172,219,745.60 : 1,757,956,305.60 = 385,090,689.60 : x
  2. Step 2: Convert to fraction form
    1,172,219,745.60/1,757,956,305.60 = 385,090,689.60/x
  3. Step 3: Cross multiply
    1,172,219,745.60x = 1,757,956,305.60 × 385,090,689.60
  4. Step 4: Simplify right side
    1,172,219,745.60x = 676,972,606,010,172,288
  5. Step 5: Solve for x
    x = 676,972,606,010,172,288/1,172,219,745.60
  6. Step 6: Final answer
    x = 577,513,395.89

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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.