Home / 1,072,475,771.60-1,609,509,919.80-426,706,965.20

Finding the Fourth Proportional to 1,072,475,771.60, 1,609,509,919.80 and 426,706,965.20

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Solution

The fourth proportional to 1,072,475,771.60, 1,609,509,919.80 and 426,706,965.20 is: 640,377,257.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,072,475,771.60 : 1,609,509,919.80 = 426,706,965.20 : x
  2. Step 2: Convert to fraction form
    1,072,475,771.60/1,609,509,919.80 = 426,706,965.20/x
  3. Step 3: Cross multiply
    1,072,475,771.60x = 1,609,509,919.80 × 426,706,965.20
  4. Step 4: Simplify right side
    1,072,475,771.60x = 686,789,093,337,153,408
  5. Step 5: Solve for x
    x = 686,789,093,337,153,408/1,072,475,771.60
  6. Step 6: Final answer
    x = 640,377,257.49

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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.