Home / 136,132,240.32-187,931,841.12-105,122,796.48

Finding the Fourth Proportional to 136,132,240.32, 187,931,841.12 and 105,122,796.48

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Solution

The fourth proportional to 136,132,240.32, 187,931,841.12 and 105,122,796.48 is: 145,123,011.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,132,240.32 : 187,931,841.12 = 105,122,796.48 : x
  2. Step 2: Convert to fraction form
    136,132,240.32/187,931,841.12 = 105,122,796.48/x
  3. Step 3: Cross multiply
    136,132,240.32x = 187,931,841.12 × 105,122,796.48
  4. Step 4: Simplify right side
    136,132,240.32x = 19,755,920,686,169,456
  5. Step 5: Solve for x
    x = 19,755,920,686,169,456/136,132,240.32
  6. Step 6: Final answer
    x = 145,123,011.56

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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.