Home / 156,148,102.82-215,486,738.51-85,583,148.45

Finding the Fourth Proportional to 156,148,102.82, 215,486,738.51 and 85,583,148.45

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Solution

The fourth proportional to 156,148,102.82, 215,486,738.51 and 85,583,148.45 is: 118,106,036.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,148,102.82 : 215,486,738.51 = 85,583,148.45 : x
  2. Step 2: Convert to fraction form
    156,148,102.82/215,486,738.51 = 85,583,148.45/x
  3. Step 3: Cross multiply
    156,148,102.82x = 215,486,738.51 × 85,583,148.45
  4. Step 4: Simplify right side
    156,148,102.82x = 18,442,033,529,671,672
  5. Step 5: Solve for x
    x = 18,442,033,529,671,672/156,148,102.82
  6. Step 6: Final answer
    x = 118,106,036.49

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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.