Home / 120,372,989.86-180,502,566.36-46,631,308.42

Finding the Fourth Proportional to 120,372,989.86, 180,502,566.36 and 46,631,308.42

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Solution

The fourth proportional to 120,372,989.86, 180,502,566.36 and 46,631,308.42 is: 69,924,912.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,372,989.86 : 180,502,566.36 = 46,631,308.42 : x
  2. Step 2: Convert to fraction form
    120,372,989.86/180,502,566.36 = 46,631,308.42/x
  3. Step 3: Cross multiply
    120,372,989.86x = 180,502,566.36 × 46,631,308.42
  4. Step 4: Simplify right side
    120,372,989.86x = 8,417,070,842,534,678
  5. Step 5: Solve for x
    x = 8,417,070,842,534,678/120,372,989.86
  6. Step 6: Final answer
    x = 69,924,912.99

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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.