Home / 156,769,500.93-216,355,696.41-86,217,543.67

Finding the Fourth Proportional to 156,769,500.93, 216,355,696.41 and 86,217,543.67

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Solution

The fourth proportional to 156,769,500.93, 216,355,696.41 and 86,217,543.67 is: 118,987,791.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,769,500.93 : 216,355,696.41 = 86,217,543.67 : x
  2. Step 2: Convert to fraction form
    156,769,500.93/216,355,696.41 = 86,217,543.67/x
  3. Step 3: Cross multiply
    156,769,500.93x = 216,355,696.41 × 86,217,543.67
  4. Step 4: Simplify right side
    156,769,500.93x = 18,653,656,703,482,436
  5. Step 5: Solve for x
    x = 18,653,656,703,482,436/156,769,500.93
  6. Step 6: Final answer
    x = 118,987,791.58

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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.