Home / 419,894,036.89-630,121,990.74-174,250,663.39

Finding the Fourth Proportional to 419,894,036.89, 630,121,990.74 and 174,250,663.39

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Solution

The fourth proportional to 419,894,036.89, 630,121,990.74 and 174,250,663.39 is: 261,492,579.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    419,894,036.89 : 630,121,990.74 = 174,250,663.39 : x
  2. Step 2: Convert to fraction form
    419,894,036.89/630,121,990.74 = 174,250,663.39/x
  3. Step 3: Cross multiply
    419,894,036.89x = 630,121,990.74 × 174,250,663.39
  4. Step 4: Simplify right side
    419,894,036.89x = 109,799,174,903,072,432
  5. Step 5: Solve for x
    x = 109,799,174,903,072,432/419,894,036.89
  6. Step 6: Final answer
    x = 261,492,579.69

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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.