Home / 579,487,964.40-869,231,946.60-191,370,697.20

Finding the Fourth Proportional to 579,487,964.40, 869,231,946.60 and 191,370,697.20

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Solution

The fourth proportional to 579,487,964.40, 869,231,946.60 and 191,370,697.20 is: 287,056,045.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    579,487,964.40 : 869,231,946.60 = 191,370,697.20 : x
  2. Step 2: Convert to fraction form
    579,487,964.40/869,231,946.60 = 191,370,697.20/x
  3. Step 3: Cross multiply
    579,487,964.40x = 869,231,946.60 × 191,370,697.20
  4. Step 4: Simplify right side
    579,487,964.40x = 166,345,523,649,355,168
  5. Step 5: Solve for x
    x = 166,345,523,649,355,168/579,487,964.40
  6. Step 6: Final answer
    x = 287,056,045.80

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Double scale
Find fourth proportional to 579,487,965.40, 869,231,948.10 and 191,370,698.20
Similar ratio
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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.