Home / 162,066,997.32-243,121,422.36-74,607,420.24

Finding the Fourth Proportional to 162,066,997.32, 243,121,422.36 and 74,607,420.24

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Solution

The fourth proportional to 162,066,997.32, 243,121,422.36 and 74,607,420.24 is: 111,920,763.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,066,997.32 : 243,121,422.36 = 74,607,420.24 : x
  2. Step 2: Convert to fraction form
    162,066,997.32/243,121,422.36 = 74,607,420.24/x
  3. Step 3: Cross multiply
    162,066,997.32x = 243,121,422.36 × 74,607,420.24
  4. Step 4: Simplify right side
    162,066,997.32x = 18,138,662,127,359,052
  5. Step 5: Solve for x
    x = 18,138,662,127,359,052/162,066,997.32
  6. Step 6: Final answer
    x = 111,920,763.80

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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.