Home / 21,386,945.60-32,096,164.80-8,616,615.20

Finding the Fourth Proportional to 21,386,945.60, 32,096,164.80 and 8,616,615.20

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Solution

The fourth proportional to 21,386,945.60, 32,096,164.80 and 8,616,615.20 is: 12,931,266.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,386,945.60 : 32,096,164.80 = 8,616,615.20 : x
  2. Step 2: Convert to fraction form
    21,386,945.60/32,096,164.80 = 8,616,615.20/x
  3. Step 3: Cross multiply
    21,386,945.60x = 32,096,164.80 × 8,616,615.20
  4. Step 4: Simplify right side
    21,386,945.60x = 276,560,301,477,384.94
  5. Step 5: Solve for x
    x = 276,560,301,477,384.94/21,386,945.60
  6. Step 6: Final answer
    x = 12,931,266.89

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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.