Home / 21,781,401.60-32,672,102.40-18,795,417.60

Finding the Fourth Proportional to 21,781,401.60, 32,672,102.40 and 18,795,417.60

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Solution

The fourth proportional to 21,781,401.60, 32,672,102.40 and 18,795,417.60 is: 28,193,126.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,781,401.60 : 32,672,102.40 = 18,795,417.60 : x
  2. Step 2: Convert to fraction form
    21,781,401.60/32,672,102.40 = 18,795,417.60/x
  3. Step 3: Cross multiply
    21,781,401.60x = 32,672,102.40 × 18,795,417.60
  4. Step 4: Simplify right side
    21,781,401.60x = 614,085,808,477,962.25
  5. Step 5: Solve for x
    x = 614,085,808,477,962.25/21,781,401.60
  6. Step 6: Final answer
    x = 28,193,126.40

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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.