Home / 20,683,668.40-31,025,502.60-10,480,001.20

Finding the Fourth Proportional to 20,683,668.40, 31,025,502.60 and 10,480,001.20

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Solution

The fourth proportional to 20,683,668.40, 31,025,502.60 and 10,480,001.20 is: 15,720,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,683,668.40 : 31,025,502.60 = 10,480,001.20 : x
  2. Step 2: Convert to fraction form
    20,683,668.40/31,025,502.60 = 10,480,001.20/x
  3. Step 3: Cross multiply
    20,683,668.40x = 31,025,502.60 × 10,480,001.20
  4. Step 4: Simplify right side
    20,683,668.40x = 325,147,304,478,603.12
  5. Step 5: Solve for x
    x = 325,147,304,478,603.12/20,683,668.40
  6. Step 6: Final answer
    x = 15,720,001.80

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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.