Home / 129,359,421.20-194,133,610.20-91,095,669.20

Finding the Fourth Proportional to 129,359,421.20, 194,133,610.20 and 91,095,669.20

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Solution

The fourth proportional to 129,359,421.20, 194,133,610.20 and 91,095,669.20 is: 136,710,036.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,359,421.20 : 194,133,610.20 = 91,095,669.20 : x
  2. Step 2: Convert to fraction form
    129,359,421.20/194,133,610.20 = 91,095,669.20/x
  3. Step 3: Cross multiply
    129,359,421.20x = 194,133,610.20 × 91,095,669.20
  4. Step 4: Simplify right side
    129,359,421.20x = 17,684,731,135,380,946
  5. Step 5: Solve for x
    x = 17,684,731,135,380,946/129,359,421.20
  6. Step 6: Final answer
    x = 136,710,036.05

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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.