Home / 155,309,371.41-214,331,418.59-85,699,235.01

Finding the Fourth Proportional to 155,309,371.41, 214,331,418.59 and 85,699,235.01

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Solution

The fourth proportional to 155,309,371.41, 214,331,418.59 and 85,699,235.01 is: 118,267,419.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,309,371.41 : 214,331,418.59 = 85,699,235.01 : x
  2. Step 2: Convert to fraction form
    155,309,371.41/214,331,418.59 = 85,699,235.01/x
  3. Step 3: Cross multiply
    155,309,371.41x = 214,331,418.59 × 85,699,235.01
  4. Step 4: Simplify right side
    155,309,371.41x = 18,368,038,611,342,600
  5. Step 5: Solve for x
    x = 18,368,038,611,342,600/155,309,371.41
  6. Step 6: Final answer
    x = 118,267,419.70

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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.