Home / 1,428,571,212.32-2,142,864,041.66-445,915,378.82

Finding the Fourth Proportional to 1,428,571,212.32, 2,142,864,041.66 and 445,915,378.82

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Solution

The fourth proportional to 1,428,571,212.32, 2,142,864,041.66 and 445,915,378.82 is: 668,875,322.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,428,571,212.32 : 2,142,864,041.66 = 445,915,378.82 : x
  2. Step 2: Convert to fraction form
    1,428,571,212.32/2,142,864,041.66 = 445,915,378.82/x
  3. Step 3: Cross multiply
    1,428,571,212.32x = 2,142,864,041.66 × 445,915,378.82
  4. Step 4: Simplify right side
    1,428,571,212.32x = 955,536,030,883,631,232
  5. Step 5: Solve for x
    x = 955,536,030,883,631,232/1,428,571,212.32
  6. Step 6: Final answer
    x = 668,875,322.87

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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.