Home / 78,732,023.10-118,224,005.85-53,285,840.70

Finding the Fourth Proportional to 78,732,023.10, 118,224,005.85 and 53,285,840.70

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Solution

The fourth proportional to 78,732,023.10, 118,224,005.85 and 53,285,840.70 is: 80,014,018.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,732,023.10 : 118,224,005.85 = 53,285,840.70 : x
  2. Step 2: Convert to fraction form
    78,732,023.10/118,224,005.85 = 53,285,840.70/x
  3. Step 3: Cross multiply
    78,732,023.10x = 118,224,005.85 × 53,285,840.70
  4. Step 4: Simplify right side
    78,732,023.10x = 6,299,665,542,638,968
  5. Step 5: Solve for x
    x = 6,299,665,542,638,968/78,732,023.10
  6. Step 6: Final answer
    x = 80,014,018.37

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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.