Home / 667,968,001.40-1,001,952,002.10-423,079,988.60

Finding the Fourth Proportional to 667,968,001.40, 1,001,952,002.10 and 423,079,988.60

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Solution

The fourth proportional to 667,968,001.40, 1,001,952,002.10 and 423,079,988.60 is: 634,619,982.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,968,001.40 : 1,001,952,002.10 = 423,079,988.60 : x
  2. Step 2: Convert to fraction form
    667,968,001.40/1,001,952,002.10 = 423,079,988.60/x
  3. Step 3: Cross multiply
    667,968,001.40x = 1,001,952,002.10 × 423,079,988.60
  4. Step 4: Simplify right side
    667,968,001.40x = 423,905,841,626,215,232
  5. Step 5: Solve for x
    x = 423,905,841,626,215,232/667,968,001.40
  6. Step 6: Final answer
    x = 634,619,982.90

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1.5x scale

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.