Home / 20,341,438.88-28,071,056.40-11,048,913.68

Finding the Fourth Proportional to 20,341,438.88, 28,071,056.40 and 11,048,913.68

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Solution

The fourth proportional to 20,341,438.88, 28,071,056.40 and 11,048,913.68 is: 15,247,430.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,341,438.88 : 28,071,056.40 = 11,048,913.68 : x
  2. Step 2: Convert to fraction form
    20,341,438.88/28,071,056.40 = 11,048,913.68/x
  3. Step 3: Cross multiply
    20,341,438.88x = 28,071,056.40 × 11,048,913.68
  4. Step 4: Simplify right side
    20,341,438.88x = 310,154,679,070,011.50
  5. Step 5: Solve for x
    x = 310,154,679,070,011.50/20,341,438.88
  6. Step 6: Final answer
    x = 15,247,430.67

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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.