Home / 681,868,817.40-1,021,627,494.90-317,616,094.20

Finding the Fourth Proportional to 681,868,817.40, 1,021,627,494.90 and 317,616,094.20

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Solution

The fourth proportional to 681,868,817.40, 1,021,627,494.90 and 317,616,094.20 is: 475,876,482.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,868,817.40 : 1,021,627,494.90 = 317,616,094.20 : x
  2. Step 2: Convert to fraction form
    681,868,817.40/1,021,627,494.90 = 317,616,094.20/x
  3. Step 3: Cross multiply
    681,868,817.40x = 1,021,627,494.90 × 317,616,094.20
  4. Step 4: Simplify right side
    681,868,817.40x = 324,485,334,657,468,416
  5. Step 5: Solve for x
    x = 324,485,334,657,468,416/681,868,817.40
  6. Step 6: Final answer
    x = 475,876,482.95

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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.