Home / 137,639,211.86-189,958,286.41-77,298,122.34

Finding the Fourth Proportional to 137,639,211.86, 189,958,286.41 and 77,298,122.34

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Solution

The fourth proportional to 137,639,211.86, 189,958,286.41 and 77,298,122.34 is: 106,680,492.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,639,211.86 : 189,958,286.41 = 77,298,122.34 : x
  2. Step 2: Convert to fraction form
    137,639,211.86/189,958,286.41 = 77,298,122.34/x
  3. Step 3: Cross multiply
    137,639,211.86x = 189,958,286.41 × 77,298,122.34
  4. Step 4: Simplify right side
    137,639,211.86x = 14,683,418,862,223,694
  5. Step 5: Solve for x
    x = 14,683,418,862,223,694/137,639,211.86
  6. Step 6: Final answer
    x = 106,680,492.16

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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.