Home / 1,267,512,901.32-1,899,927,462-426,354,877.10

Finding the Fourth Proportional to 1,267,512,901.32, 1,899,927,462 and 426,354,877.10

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Solution

The fourth proportional to 1,267,512,901.32, 1,899,927,462 and 426,354,877.10 is: 639,080,942.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,512,901.32 : 1,899,927,462 = 426,354,877.10 : x
  2. Step 2: Convert to fraction form
    1,267,512,901.32/1,899,927,462 = 426,354,877.10/x
  3. Step 3: Cross multiply
    1,267,512,901.32x = 1,899,927,462 × 426,354,877.10
  4. Step 4: Simplify right side
    1,267,512,901.32x = 810,043,339,559,924,992
  5. Step 5: Solve for x
    x = 810,043,339,559,924,992/1,267,512,901.32
  6. Step 6: Final answer
    x = 639,080,942.46

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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.