Home / 927,297,497.60-1,390,946,246.40-280,981,260.80

Finding the Fourth Proportional to 927,297,497.60, 1,390,946,246.40 and 280,981,260.80

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Solution

The fourth proportional to 927,297,497.60, 1,390,946,246.40 and 280,981,260.80 is: 421,471,891.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,297,497.60 : 1,390,946,246.40 = 280,981,260.80 : x
  2. Step 2: Convert to fraction form
    927,297,497.60/1,390,946,246.40 = 280,981,260.80/x
  3. Step 3: Cross multiply
    927,297,497.60x = 1,390,946,246.40 × 280,981,260.80
  4. Step 4: Simplify right side
    927,297,497.60x = 390,829,830,018,499,520
  5. Step 5: Solve for x
    x = 390,829,830,018,499,520/927,297,497.60
  6. Step 6: Final answer
    x = 421,471,891.20

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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.