Home / 1,267,512,842.19-1,899,927,373.40-426,354,818.03

Finding the Fourth Proportional to 1,267,512,842.19, 1,899,927,373.40 and 426,354,818.03

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Solution

The fourth proportional to 1,267,512,842.19, 1,899,927,373.40 and 426,354,818.03 is: 639,080,853.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,512,842.19 : 1,899,927,373.40 = 426,354,818.03 : x
  2. Step 2: Convert to fraction form
    1,267,512,842.19/1,899,927,373.40 = 426,354,818.03/x
  3. Step 3: Cross multiply
    1,267,512,842.19x = 1,899,927,373.40 × 426,354,818.03
  4. Step 4: Simplify right side
    1,267,512,842.19x = 810,043,189,553,243,648
  5. Step 5: Solve for x
    x = 810,043,189,553,243,648/1,267,512,842.19
  6. Step 6: Final answer
    x = 639,080,853.93

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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.