Home / 681,696,019.20-1,022,544,028.80-436,808,006.40

Finding the Fourth Proportional to 681,696,019.20, 1,022,544,028.80 and 436,808,006.40

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Solution

The fourth proportional to 681,696,019.20, 1,022,544,028.80 and 436,808,006.40 is: 655,212,009.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    681,696,019.20 : 1,022,544,028.80 = 436,808,006.40 : x
  2. Step 2: Convert to fraction form
    681,696,019.20/1,022,544,028.80 = 436,808,006.40/x
  3. Step 3: Cross multiply
    681,696,019.20x = 1,022,544,028.80 × 436,808,006.40
  4. Step 4: Simplify right side
    681,696,019.20x = 446,655,418,676,352,128
  5. Step 5: Solve for x
    x = 446,655,418,676,352,128/681,696,019.20
  6. Step 6: Final answer
    x = 655,212,009.60

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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.