Home / 21,001,813.60-31,502,720.40-5,045,461.60

Finding the Fourth Proportional to 21,001,813.60, 31,502,720.40 and 5,045,461.60

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Solution

The fourth proportional to 21,001,813.60, 31,502,720.40 and 5,045,461.60 is: 7,568,192.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,001,813.60 : 31,502,720.40 = 5,045,461.60 : x
  2. Step 2: Convert to fraction form
    21,001,813.60/31,502,720.40 = 5,045,461.60/x
  3. Step 3: Cross multiply
    21,001,813.60x = 31,502,720.40 × 5,045,461.60
  4. Step 4: Simplify right side
    21,001,813.60x = 158,945,766,073,736.62
  5. Step 5: Solve for x
    x = 158,945,766,073,736.62/21,001,813.60
  6. Step 6: Final answer
    x = 7,568,192.40

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1.5x scale

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.