Home / 129,359,440.20-194,133,638.70-91,095,688.20

Finding the Fourth Proportional to 129,359,440.20, 194,133,638.70 and 91,095,688.20

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Solution

The fourth proportional to 129,359,440.20, 194,133,638.70 and 91,095,688.20 is: 136,710,064.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,359,440.20 : 194,133,638.70 = 91,095,688.20 : x
  2. Step 2: Convert to fraction form
    129,359,440.20/194,133,638.70 = 91,095,688.20/x
  3. Step 3: Cross multiply
    129,359,440.20x = 194,133,638.70 × 91,095,688.20
  4. Step 4: Simplify right side
    129,359,440.20x = 17,684,737,420,146,652
  5. Step 5: Solve for x
    x = 17,684,737,420,146,652/129,359,440.20
  6. Step 6: Final answer
    x = 136,710,064.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.