Home / 144,503,613-199,414,985.85-78,424,111.26

Finding the Fourth Proportional to 144,503,613, 199,414,985.85 and 78,424,111.26

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Solution

The fourth proportional to 144,503,613, 199,414,985.85 and 78,424,111.26 is: 108,225,273.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    144,503,613 : 199,414,985.85 = 78,424,111.26 : x
  2. Step 2: Convert to fraction form
    144,503,613/199,414,985.85 = 78,424,111.26/x
  3. Step 3: Cross multiply
    144,503,613x = 199,414,985.85 × 78,424,111.26
  4. Step 4: Simplify right side
    144,503,613x = 15,638,943,037,211,726
  5. Step 5: Solve for x
    x = 15,638,943,037,211,726/144,503,613
  6. Step 6: Final answer
    x = 108,225,273.49

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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.