Home / 1,281,371,824.80-1,922,057,737.20-312,023,440.80

Finding the Fourth Proportional to 1,281,371,824.80, 1,922,057,737.20 and 312,023,440.80

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Solution

The fourth proportional to 1,281,371,824.80, 1,922,057,737.20 and 312,023,440.80 is: 468,035,161.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,281,371,824.80 : 1,922,057,737.20 = 312,023,440.80 : x
  2. Step 2: Convert to fraction form
    1,281,371,824.80/1,922,057,737.20 = 312,023,440.80/x
  3. Step 3: Cross multiply
    1,281,371,824.80x = 1,922,057,737.20 × 312,023,440.80
  4. Step 4: Simplify right side
    1,281,371,824.80x = 599,727,068,577,406,208
  5. Step 5: Solve for x
    x = 599,727,068,577,406,208/1,281,371,824.80
  6. Step 6: Final answer
    x = 468,035,161.20

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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.