Home / 645,215,541.40-967,823,312.10-185,200,211.80

Finding the Fourth Proportional to 645,215,541.40, 967,823,312.10 and 185,200,211.80

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Solution

The fourth proportional to 645,215,541.40, 967,823,312.10 and 185,200,211.80 is: 277,800,317.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,215,541.40 : 967,823,312.10 = 185,200,211.80 : x
  2. Step 2: Convert to fraction form
    645,215,541.40/967,823,312.10 = 185,200,211.80/x
  3. Step 3: Cross multiply
    645,215,541.40x = 967,823,312.10 × 185,200,211.80
  4. Step 4: Simplify right side
    645,215,541.40x = 179,241,082,385,897,504
  5. Step 5: Solve for x
    x = 179,241,082,385,897,504/645,215,541.40
  6. Step 6: Final answer
    x = 277,800,317.70

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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.