Home / 20,158,113.60-27,818,056.80-11,455,603.20

Finding the Fourth Proportional to 20,158,113.60, 27,818,056.80 and 11,455,603.20

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Solution

The fourth proportional to 20,158,113.60, 27,818,056.80 and 11,455,603.20 is: 15,808,652.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,158,113.60 : 27,818,056.80 = 11,455,603.20 : x
  2. Step 2: Convert to fraction form
    20,158,113.60/27,818,056.80 = 11,455,603.20/x
  3. Step 3: Cross multiply
    20,158,113.60x = 27,818,056.80 × 11,455,603.20
  4. Step 4: Simplify right side
    20,158,113.60x = 318,672,620,495,861.75
  5. Step 5: Solve for x
    x = 318,672,620,495,861.75/20,158,113.60
  6. Step 6: Final answer
    x = 15,808,652.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.