Home / 272,970,033.60-409,455,050.40-78,887,780.40

Finding the Fourth Proportional to 272,970,033.60, 409,455,050.40 and 78,887,780.40

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Solution

The fourth proportional to 272,970,033.60, 409,455,050.40 and 78,887,780.40 is: 118,331,670.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,970,033.60 : 409,455,050.40 = 78,887,780.40 : x
  2. Step 2: Convert to fraction form
    272,970,033.60/409,455,050.40 = 78,887,780.40/x
  3. Step 3: Cross multiply
    272,970,033.60x = 409,455,050.40 × 78,887,780.40
  4. Step 4: Simplify right side
    272,970,033.60x = 32,301,000,099,626,132
  5. Step 5: Solve for x
    x = 32,301,000,099,626,132/272,970,033.60
  6. Step 6: Final answer
    x = 118,331,670.60

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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.