Home / 189,541,303.07-261,577,102.19-105,911,463.78

Finding the Fourth Proportional to 189,541,303.07, 261,577,102.19 and 105,911,463.78

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Solution

The fourth proportional to 189,541,303.07, 261,577,102.19 and 105,911,463.78 is: 146,163,465.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,541,303.07 : 261,577,102.19 = 105,911,463.78 : x
  2. Step 2: Convert to fraction form
    189,541,303.07/261,577,102.19 = 105,911,463.78/x
  3. Step 3: Cross multiply
    189,541,303.07x = 261,577,102.19 × 105,911,463.78
  4. Step 4: Simplify right side
    189,541,303.07x = 27,704,013,783,743,988
  5. Step 5: Solve for x
    x = 27,704,013,783,743,988/189,541,303.07
  6. Step 6: Final answer
    x = 146,163,465.88

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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.