Home / 272,970,036.60-409,455,054.90-78,887,783.40

Finding the Fourth Proportional to 272,970,036.60, 409,455,054.90 and 78,887,783.40

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Solution

The fourth proportional to 272,970,036.60, 409,455,054.90 and 78,887,783.40 is: 118,331,675.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,970,036.60 : 409,455,054.90 = 78,887,783.40 : x
  2. Step 2: Convert to fraction form
    272,970,036.60/409,455,054.90 = 78,887,783.40/x
  3. Step 3: Cross multiply
    272,970,036.60x = 409,455,054.90 × 78,887,783.40
  4. Step 4: Simplify right side
    272,970,036.60x = 32,301,001,682,986,308
  5. Step 5: Solve for x
    x = 32,301,001,682,986,308/272,970,036.60
  6. Step 6: Final answer
    x = 118,331,675.10

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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.