Home / 156,769,499.93-216,355,695.03-86,217,542.67

Finding the Fourth Proportional to 156,769,499.93, 216,355,695.03 and 86,217,542.67

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Solution

The fourth proportional to 156,769,499.93, 216,355,695.03 and 86,217,542.67 is: 118,987,790.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,769,499.93 : 216,355,695.03 = 86,217,542.67 : x
  2. Step 2: Convert to fraction form
    156,769,499.93/216,355,695.03 = 86,217,542.67/x
  3. Step 3: Cross multiply
    156,769,499.93x = 216,355,695.03 × 86,217,542.67
  4. Step 4: Simplify right side
    156,769,499.93x = 18,653,656,368,224,604
  5. Step 5: Solve for x
    x = 18,653,656,368,224,604/156,769,499.93
  6. Step 6: Final answer
    x = 118,987,790.20

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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.