Home / 579,487,946.40-869,231,919.60-191,370,679.20

Finding the Fourth Proportional to 579,487,946.40, 869,231,919.60 and 191,370,679.20

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Solution

The fourth proportional to 579,487,946.40, 869,231,919.60 and 191,370,679.20 is: 287,056,018.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,487,946.40 : 869,231,919.60 = 191,370,679.20 : x
  2. Step 2: Convert to fraction form
    579,487,946.40/869,231,919.60 = 191,370,679.20/x
  3. Step 3: Cross multiply
    579,487,946.40x = 869,231,919.60 × 191,370,679.20
  4. Step 4: Simplify right side
    579,487,946.40x = 166,345,502,836,171,776
  5. Step 5: Solve for x
    x = 166,345,502,836,171,776/579,487,946.40
  6. Step 6: Final answer
    x = 287,056,018.80

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Double scale
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Similar ratio
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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.