Home / 189,626,141.78-261,705,312.88-107,125,240.94

Finding the Fourth Proportional to 189,626,141.78, 261,705,312.88 and 107,125,240.94

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Solution

The fourth proportional to 189,626,141.78, 261,705,312.88 and 107,125,240.94 is: 147,844,830.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,626,141.78 : 261,705,312.88 = 107,125,240.94 : x
  2. Step 2: Convert to fraction form
    189,626,141.78/261,705,312.88 = 107,125,240.94/x
  3. Step 3: Cross multiply
    189,626,141.78x = 261,705,312.88 × 107,125,240.94
  4. Step 4: Simplify right side
    189,626,141.78x = 28,035,244,695,971,748
  5. Step 5: Solve for x
    x = 28,035,244,695,971,748/189,626,141.78
  6. Step 6: Final answer
    x = 147,844,830.01

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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.