Home / 859,627,741.20-1,289,441,611.80-368,257,392.60

Finding the Fourth Proportional to 859,627,741.20, 1,289,441,611.80 and 368,257,392.60

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Solution

The fourth proportional to 859,627,741.20, 1,289,441,611.80 and 368,257,392.60 is: 552,386,088.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    859,627,741.20 : 1,289,441,611.80 = 368,257,392.60 : x
  2. Step 2: Convert to fraction form
    859,627,741.20/1,289,441,611.80 = 368,257,392.60/x
  3. Step 3: Cross multiply
    859,627,741.20x = 1,289,441,611.80 × 368,257,392.60
  4. Step 4: Simplify right side
    859,627,741.20x = 474,846,405,871,409,408
  5. Step 5: Solve for x
    x = 474,846,405,871,409,408/859,627,741.20
  6. Step 6: Final answer
    x = 552,386,088.90

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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.