Home / 1,147,395,152.34-1,717,530,039.90-621,457,985.70

Finding the Fourth Proportional to 1,147,395,152.34, 1,717,530,039.90 and 621,457,985.70

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Solution

The fourth proportional to 1,147,395,152.34, 1,717,530,039.90 and 621,457,985.70 is: 930,257,337.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,147,395,152.34 : 1,717,530,039.90 = 621,457,985.70 : x
  2. Step 2: Convert to fraction form
    1,147,395,152.34/1,717,530,039.90 = 621,457,985.70/x
  3. Step 3: Cross multiply
    1,147,395,152.34x = 1,717,530,039.90 × 621,457,985.70
  4. Step 4: Simplify right side
    1,147,395,152.34x = 1,067,372,758,975,494,784
  5. Step 5: Solve for x
    x = 1,067,372,758,975,494,784/1,147,395,152.34
  6. Step 6: Final answer
    x = 930,257,337.06

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Double scale
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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.