Home / 140,132,139.10-193,378,605.32-77,406,887.07

Finding the Fourth Proportional to 140,132,139.10, 193,378,605.32 and 77,406,887.07

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Solution

The fourth proportional to 140,132,139.10, 193,378,605.32 and 77,406,887.07 is: 106,819,434.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,132,139.10 : 193,378,605.32 = 77,406,887.07 : x
  2. Step 2: Convert to fraction form
    140,132,139.10/193,378,605.32 = 77,406,887.07/x
  3. Step 3: Cross multiply
    140,132,139.10x = 193,378,605.32 × 77,406,887.07
  4. Step 4: Simplify right side
    140,132,139.10x = 14,968,835,863,952,856
  5. Step 5: Solve for x
    x = 14,968,835,863,952,856/140,132,139.10
  6. Step 6: Final answer
    x = 106,819,434.57

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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.