Home / 20,587,172.40-30,871,427.40-7,803,428.40

Finding the Fourth Proportional to 20,587,172.40, 30,871,427.40 and 7,803,428.40

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Solution

The fourth proportional to 20,587,172.40, 30,871,427.40 and 7,803,428.40 is: 11,701,605.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587,172.40 : 30,871,427.40 = 7,803,428.40 : x
  2. Step 2: Convert to fraction form
    20,587,172.40/30,871,427.40 = 7,803,428.40/x
  3. Step 3: Cross multiply
    20,587,172.40x = 30,871,427.40 × 7,803,428.40
  4. Step 4: Simplify right side
    20,587,172.40x = 240,902,973,321,698.16
  5. Step 5: Solve for x
    x = 240,902,973,321,698.16/20,587,172.40
  6. Step 6: Final answer
    x = 11,701,605.67

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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.