Home / 20,587,168.40-30,871,421.40-7,803,424.40

Finding the Fourth Proportional to 20,587,168.40, 30,871,421.40 and 7,803,424.40

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Solution

The fourth proportional to 20,587,168.40, 30,871,421.40 and 7,803,424.40 is: 11,701,599.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,587,168.40 : 30,871,421.40 = 7,803,424.40 : x
  2. Step 2: Convert to fraction form
    20,587,168.40/30,871,421.40 = 7,803,424.40/x
  3. Step 3: Cross multiply
    20,587,168.40x = 30,871,421.40 × 7,803,424.40
  4. Step 4: Simplify right side
    20,587,168.40x = 240,902,803,015,442.16
  5. Step 5: Solve for x
    x = 240,902,803,015,442.16/20,587,168.40
  6. Step 6: Final answer
    x = 11,701,599.67

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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.