Home / 667,617,270.03-921,190,013.22-385,256,701.74

Finding the Fourth Proportional to 667,617,270.03, 921,190,013.22 and 385,256,701.74

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Solution

The fourth proportional to 667,617,270.03, 921,190,013.22 and 385,256,701.74 is: 531,583,951.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,617,270.03 : 921,190,013.22 = 385,256,701.74 : x
  2. Step 2: Convert to fraction form
    667,617,270.03/921,190,013.22 = 385,256,701.74/x
  3. Step 3: Cross multiply
    667,617,270.03x = 921,190,013.22 × 385,256,701.74
  4. Step 4: Simplify right side
    667,617,270.03x = 354,894,626,168,964,224
  5. Step 5: Solve for x
    x = 354,894,626,168,964,224/667,617,270.03
  6. Step 6: Final answer
    x = 531,583,951.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.