Home / 20,833,111.40-31,231,004.70-13,648,087.40

Finding the Fourth Proportional to 20,833,111.40, 31,231,004.70 and 13,648,087.40

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Solution

The fourth proportional to 20,833,111.40, 31,231,004.70 and 13,648,087.40 is: 20,459,905.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,833,111.40 : 31,231,004.70 = 13,648,087.40 : x
  2. Step 2: Convert to fraction form
    20,833,111.40/31,231,004.70 = 13,648,087.40/x
  3. Step 3: Cross multiply
    20,833,111.40x = 31,231,004.70 × 13,648,087.40
  4. Step 4: Simplify right side
    20,833,111.40x = 426,243,481,735,410.81
  5. Step 5: Solve for x
    x = 426,243,481,735,410.81/20,833,111.40
  6. Step 6: Final answer
    x = 20,459,905.08

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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.