Home / 78,732,187.60-118,224,252.60-53,286,005.20

Finding the Fourth Proportional to 78,732,187.60, 118,224,252.60 and 53,286,005.20

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Solution

The fourth proportional to 78,732,187.60, 118,224,252.60 and 53,286,005.20 is: 80,014,265.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,187.60 : 118,224,252.60 = 53,286,005.20 : x
  2. Step 2: Convert to fraction form
    78,732,187.60/118,224,252.60 = 53,286,005.20/x
  3. Step 3: Cross multiply
    78,732,187.60x = 118,224,252.60 × 53,286,005.20
  4. Step 4: Simplify right side
    78,732,187.60x = 6,299,698,138,809,714
  5. Step 5: Solve for x
    x = 6,299,698,138,809,714/78,732,187.60
  6. Step 6: Final answer
    x = 80,014,265.21

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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.