Home / 72,909,110.60-109,363,665.90-71,775,369.80

Finding the Fourth Proportional to 72,909,110.60, 109,363,665.90 and 71,775,369.80

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Solution

The fourth proportional to 72,909,110.60, 109,363,665.90 and 71,775,369.80 is: 107,663,054.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,909,110.60 : 109,363,665.90 = 71,775,369.80 : x
  2. Step 2: Convert to fraction form
    72,909,110.60/109,363,665.90 = 71,775,369.80/x
  3. Step 3: Cross multiply
    72,909,110.60x = 109,363,665.90 × 71,775,369.80
  4. Step 4: Simplify right side
    72,909,110.60x = 7,849,617,562,656,150
  5. Step 5: Solve for x
    x = 7,849,617,562,656,150/72,909,110.60
  6. Step 6: Final answer
    x = 107,663,054.70

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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.