Home / 21,064,875.60-31,597,313.40-18,629,432.40

Finding the Fourth Proportional to 21,064,875.60, 31,597,313.40 and 18,629,432.40

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Solution

The fourth proportional to 21,064,875.60, 31,597,313.40 and 18,629,432.40 is: 27,944,148.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,064,875.60 : 31,597,313.40 = 18,629,432.40 : x
  2. Step 2: Convert to fraction form
    21,064,875.60/31,597,313.40 = 18,629,432.40/x
  3. Step 3: Cross multiply
    21,064,875.60x = 31,597,313.40 × 18,629,432.40
  4. Step 4: Simplify right side
    21,064,875.60x = 588,640,014,006,914.12
  5. Step 5: Solve for x
    x = 588,640,014,006,914.12/21,064,875.60
  6. Step 6: Final answer
    x = 27,944,148.60

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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.