Home / 860,203,283.20-1,290,304,924.80-285,774,611.20

Finding the Fourth Proportional to 860,203,283.20, 1,290,304,924.80 and 285,774,611.20

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Solution

The fourth proportional to 860,203,283.20, 1,290,304,924.80 and 285,774,611.20 is: 428,661,916.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,203,283.20 : 1,290,304,924.80 = 285,774,611.20 : x
  2. Step 2: Convert to fraction form
    860,203,283.20/1,290,304,924.80 = 285,774,611.20/x
  3. Step 3: Cross multiply
    860,203,283.20x = 1,290,304,924.80 × 285,774,611.20
  4. Step 4: Simplify right side
    860,203,283.20x = 368,736,388,214,165,184
  5. Step 5: Solve for x
    x = 368,736,388,214,165,184/860,203,283.20
  6. Step 6: Final answer
    x = 428,661,916.80

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Double scale
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1.5x scale

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.