Home / 137,711,274-190,041,558.12-75,831,465.12

Finding the Fourth Proportional to 137,711,274, 190,041,558.12 and 75,831,465.12

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Solution

The fourth proportional to 137,711,274, 190,041,558.12 and 75,831,465.12 is: 104,647,421.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,711,274 : 190,041,558.12 = 75,831,465.12 : x
  2. Step 2: Convert to fraction form
    137,711,274/190,041,558.12 = 75,831,465.12/x
  3. Step 3: Cross multiply
    137,711,274x = 190,041,558.12 × 75,831,465.12
  4. Step 4: Simplify right side
    137,711,274x = 14,411,129,785,927,234
  5. Step 5: Solve for x
    x = 14,411,129,785,927,234/137,711,274
  6. Step 6: Final answer
    x = 104,647,421.87

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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.