Home / 12,753,784,190.80-19,130,676,286.20-7,243,803,902.80

Finding the Fourth Proportional to 12,753,784,190.80, 19,130,676,286.20 and 7,243,803,902.80

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Solution

The fourth proportional to 12,753,784,190.80, 19,130,676,286.20 and 7,243,803,902.80 is: 10,865,705,854.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,753,784,190.80 : 19,130,676,286.20 = 7,243,803,902.80 : x
  2. Step 2: Convert to fraction form
    12,753,784,190.80/19,130,676,286.20 = 7,243,803,902.80/x
  3. Step 3: Cross multiply
    12,753,784,190.80x = 19,130,676,286.20 × 7,243,803,902.80
  4. Step 4: Simplify right side
    12,753,784,190.80x = 138,578,867,545,178,980,352
  5. Step 5: Solve for x
    x = 138,578,867,545,178,980,352/12,753,784,190.80
  6. Step 6: Final answer
    x = 10,865,705,854.20

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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.