Home / 78,732,029.60-118,224,015.60-53,285,847.20

Finding the Fourth Proportional to 78,732,029.60, 118,224,015.60 and 53,285,847.20

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Solution

The fourth proportional to 78,732,029.60, 118,224,015.60 and 53,285,847.20 is: 80,014,028.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,029.60 : 118,224,015.60 = 53,285,847.20 : x
  2. Step 2: Convert to fraction form
    78,732,029.60/118,224,015.60 = 53,285,847.20/x
  3. Step 3: Cross multiply
    78,732,029.60x = 118,224,015.60 × 53,285,847.20
  4. Step 4: Simplify right side
    78,732,029.60x = 6,299,666,830,632,016
  5. Step 5: Solve for x
    x = 6,299,666,830,632,016/78,732,029.60
  6. Step 6: Final answer
    x = 80,014,028.12

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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.