Home / 156,119,316.33-215,444,909.79-85,543,711.67

Finding the Fourth Proportional to 156,119,316.33, 215,444,909.79 and 85,543,711.67

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Solution

The fourth proportional to 156,119,316.33, 215,444,909.79 and 85,543,711.67 is: 118,050,460.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,119,316.33 : 215,444,909.79 = 85,543,711.67 : x
  2. Step 2: Convert to fraction form
    156,119,316.33/215,444,909.79 = 85,543,711.67/x
  3. Step 3: Cross multiply
    156,119,316.33x = 215,444,909.79 × 85,543,711.67
  4. Step 4: Simplify right side
    156,119,316.33x = 18,429,957,242,767,696
  5. Step 5: Solve for x
    x = 18,429,957,242,767,696/156,119,316.33
  6. Step 6: Final answer
    x = 118,050,460.87

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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.