Home / 21,791,331.19-30,072,808.25-13,535,914.67

Finding the Fourth Proportional to 21,791,331.19, 30,072,808.25 and 13,535,914.67

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Solution

The fourth proportional to 21,791,331.19, 30,072,808.25 and 13,535,914.67 is: 18,680,041.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,791,331.19 : 30,072,808.25 = 13,535,914.67 : x
  2. Step 2: Convert to fraction form
    21,791,331.19/30,072,808.25 = 13,535,914.67/x
  3. Step 3: Cross multiply
    21,791,331.19x = 30,072,808.25 × 13,535,914.67
  4. Step 4: Simplify right side
    21,791,331.19x = 407,062,966,242,747.75
  5. Step 5: Solve for x
    x = 407,062,966,242,747.75/21,791,331.19
  6. Step 6: Final answer
    x = 18,680,041.29

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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.