Home / 136,158,437.55-187,872,945.69-81,159,411.63

Finding the Fourth Proportional to 136,158,437.55, 187,872,945.69 and 81,159,411.63

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Solution

The fourth proportional to 136,158,437.55, 187,872,945.69 and 81,159,411.63 is: 111,984,670.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,158,437.55 : 187,872,945.69 = 81,159,411.63 : x
  2. Step 2: Convert to fraction form
    136,158,437.55/187,872,945.69 = 81,159,411.63/x
  3. Step 3: Cross multiply
    136,158,437.55x = 187,872,945.69 × 81,159,411.63
  4. Step 4: Simplify right side
    136,158,437.55x = 15,247,657,734,404,216
  5. Step 5: Solve for x
    x = 15,247,657,734,404,216/136,158,437.55
  6. Step 6: Final answer
    x = 111,984,670.27

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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.