Home / 136,158,434.65-187,872,941.69-81,159,408.73

Finding the Fourth Proportional to 136,158,434.65, 187,872,941.69 and 81,159,408.73

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Solution

The fourth proportional to 136,158,434.65, 187,872,941.69 and 81,159,408.73 is: 111,984,666.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,158,434.65 : 187,872,941.69 = 81,159,408.73 : x
  2. Step 2: Convert to fraction form
    136,158,434.65/187,872,941.69 = 81,159,408.73/x
  3. Step 3: Cross multiply
    136,158,434.65x = 187,872,941.69 × 81,159,408.73
  4. Step 4: Simplify right side
    136,158,434.65x = 15,247,656,863,050,688
  5. Step 5: Solve for x
    x = 15,247,656,863,050,688/136,158,434.65
  6. Step 6: Final answer
    x = 111,984,666.26

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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.