Home / 137,554,445.86-189,826,368.18-74,831,910.58

Finding the Fourth Proportional to 137,554,445.86, 189,826,368.18 and 74,831,910.58

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Solution

The fourth proportional to 137,554,445.86, 189,826,368.18 and 74,831,910.58 is: 103,268,707.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,554,445.86 : 189,826,368.18 = 74,831,910.58 : x
  2. Step 2: Convert to fraction form
    137,554,445.86/189,826,368.18 = 74,831,910.58/x
  3. Step 3: Cross multiply
    137,554,445.86x = 189,826,368.18 × 74,831,910.58
  4. Step 4: Simplify right side
    137,554,445.86x = 14,205,069,809,371,918
  5. Step 5: Solve for x
    x = 14,205,069,809,371,918/137,554,445.86
  6. Step 6: Final answer
    x = 103,268,707.31

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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.