Home / 72,692,152.20-109,038,228.30-69,822,370.80

Finding the Fourth Proportional to 72,692,152.20, 109,038,228.30 and 69,822,370.80

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Solution

The fourth proportional to 72,692,152.20, 109,038,228.30 and 69,822,370.80 is: 104,733,556.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,692,152.20 : 109,038,228.30 = 69,822,370.80 : x
  2. Step 2: Convert to fraction form
    72,692,152.20/109,038,228.30 = 69,822,370.80/x
  3. Step 3: Cross multiply
    72,692,152.20x = 109,038,228.30 × 69,822,370.80
  4. Step 4: Simplify right side
    72,692,152.20x = 7,613,307,607,737,653
  5. Step 5: Solve for x
    x = 7,613,307,607,737,653/72,692,152.20
  6. Step 6: Final answer
    x = 104,733,556.20

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.