Home / 1,267,512,348.45-1,899,926,626.63-426,354,328.84

Finding the Fourth Proportional to 1,267,512,348.45, 1,899,926,626.63 and 426,354,328.84

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Solution

The fourth proportional to 1,267,512,348.45, 1,899,926,626.63 and 426,354,328.84 is: 639,080,118.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,267,512,348.45 : 1,899,926,626.63 = 426,354,328.84 : x
  2. Step 2: Convert to fraction form
    1,267,512,348.45/1,899,926,626.63 = 426,354,328.84/x
  3. Step 3: Cross multiply
    1,267,512,348.45x = 1,899,926,626.63 × 426,354,328.84
  4. Step 4: Simplify right side
    1,267,512,348.45x = 810,041,941,740,607,104
  5. Step 5: Solve for x
    x = 810,041,941,740,607,104/1,267,512,348.45
  6. Step 6: Final answer
    x = 639,080,118.42

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Double scale
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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.