Home / 155,389,723.11-214,437,070.22-85,774,495.05

Finding the Fourth Proportional to 155,389,723.11, 214,437,070.22 and 85,774,495.05

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Solution

The fourth proportional to 155,389,723.11, 214,437,070.22 and 85,774,495.05 is: 118,368,390.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,389,723.11 : 214,437,070.22 = 85,774,495.05 : x
  2. Step 2: Convert to fraction form
    155,389,723.11/214,437,070.22 = 85,774,495.05/x
  3. Step 3: Cross multiply
    155,389,723.11x = 214,437,070.22 × 85,774,495.05
  4. Step 4: Simplify right side
    155,389,723.11x = 18,393,231,418,121,892
  5. Step 5: Solve for x
    x = 18,393,231,418,121,892/155,389,723.11
  6. Step 6: Final answer
    x = 118,368,390.46

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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.