Home / 20,697,031.65-31,052,456.91-9,180,910.18

Finding the Fourth Proportional to 20,697,031.65, 31,052,456.91 and 9,180,910.18

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Solution

The fourth proportional to 20,697,031.65, 31,052,456.91 and 9,180,910.18 is: 13,774,430.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,697,031.65 : 31,052,456.91 = 9,180,910.18 : x
  2. Step 2: Convert to fraction form
    20,697,031.65/31,052,456.91 = 9,180,910.18/x
  3. Step 3: Cross multiply
    20,697,031.65x = 31,052,456.91 × 9,180,910.18
  4. Step 4: Simplify right side
    20,697,031.65x = 285,089,817,759,030.31
  5. Step 5: Solve for x
    x = 285,089,817,759,030.31/20,697,031.65
  6. Step 6: Final answer
    x = 13,774,430.20

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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.