Home / 151,973,381.40-209,723,445.72-82,358,761.92

Finding the Fourth Proportional to 151,973,381.40, 209,723,445.72 and 82,358,761.92

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Solution

The fourth proportional to 151,973,381.40, 209,723,445.72 and 82,358,761.92 is: 113,655,188.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    151,973,381.40 : 209,723,445.72 = 82,358,761.92 : x
  2. Step 2: Convert to fraction form
    151,973,381.40/209,723,445.72 = 82,358,761.92/x
  3. Step 3: Cross multiply
    151,973,381.40x = 209,723,445.72 × 82,358,761.92
  4. Step 4: Simplify right side
    151,973,381.40x = 17,272,563,335,095,524
  5. Step 5: Solve for x
    x = 17,272,563,335,095,524/151,973,381.40
  6. Step 6: Final answer
    x = 113,655,188.67

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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.