Home / 930,889,611.60-1,396,334,417.40-317,493,848.40

Finding the Fourth Proportional to 930,889,611.60, 1,396,334,417.40 and 317,493,848.40

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Solution

The fourth proportional to 930,889,611.60, 1,396,334,417.40 and 317,493,848.40 is: 476,240,772.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,889,611.60 : 1,396,334,417.40 = 317,493,848.40 : x
  2. Step 2: Convert to fraction form
    930,889,611.60/1,396,334,417.40 = 317,493,848.40/x
  3. Step 3: Cross multiply
    930,889,611.60x = 1,396,334,417.40 × 317,493,848.40
  4. Step 4: Simplify right side
    930,889,611.60x = 443,327,587,833,697,920
  5. Step 5: Solve for x
    x = 443,327,587,833,697,920/930,889,611.60
  6. Step 6: Final answer
    x = 476,240,772.60

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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.