Home / 76,638,009.60-114,957,014.40-49,428,230.40

Finding the Fourth Proportional to 76,638,009.60, 114,957,014.40 and 49,428,230.40

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Solution

The fourth proportional to 76,638,009.60, 114,957,014.40 and 49,428,230.40 is: 74,142,345.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,638,009.60 : 114,957,014.40 = 49,428,230.40 : x
  2. Step 2: Convert to fraction form
    76,638,009.60/114,957,014.40 = 49,428,230.40/x
  3. Step 3: Cross multiply
    76,638,009.60x = 114,957,014.40 × 49,428,230.40
  4. Step 4: Simplify right side
    76,638,009.60x = 5,682,121,793,859,318
  5. Step 5: Solve for x
    x = 5,682,121,793,859,318/76,638,009.60
  6. Step 6: Final answer
    x = 74,142,345.60

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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.