Home / 13,886,430,523.84-19,164,863,856.96-7,784,431,171.60

Finding the Fourth Proportional to 13,886,430,523.84, 19,164,863,856.96 and 7,784,431,171.60

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Solution

The fourth proportional to 13,886,430,523.84, 19,164,863,856.96 and 7,784,431,171.60 is: 10,743,406,187.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,886,430,523.84 : 19,164,863,856.96 = 7,784,431,171.60 : x
  2. Step 2: Convert to fraction form
    13,886,430,523.84/19,164,863,856.96 = 7,784,431,171.60/x
  3. Step 3: Cross multiply
    13,886,430,523.84x = 19,164,863,856.96 × 7,784,431,171.60
  4. Step 4: Simplify right side
    13,886,430,523.84x = 149,187,563,607,589,617,664
  5. Step 5: Solve for x
    x = 149,187,563,607,589,617,664/13,886,430,523.84
  6. Step 6: Final answer
    x = 10,743,406,187.17

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.