Home / 142,537,544.12-213,887,189.82-76,957,802.48

Finding the Fourth Proportional to 142,537,544.12, 213,887,189.82 and 76,957,802.48

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Solution

The fourth proportional to 142,537,544.12, 213,887,189.82 and 76,957,802.48 is: 115,480,368.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    142,537,544.12 : 213,887,189.82 = 76,957,802.48 : x
  2. Step 2: Convert to fraction form
    142,537,544.12/213,887,189.82 = 76,957,802.48/x
  3. Step 3: Cross multiply
    142,537,544.12x = 213,887,189.82 × 76,957,802.48
  4. Step 4: Simplify right side
    142,537,544.12x = 16,460,288,107,169,828
  5. Step 5: Solve for x
    x = 16,460,288,107,169,828/142,537,544.12
  6. Step 6: Final answer
    x = 115,480,368.41

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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.