Home / 66,172,031.60-99,258,047.40-20,113,811.60

Finding the Fourth Proportional to 66,172,031.60, 99,258,047.40 and 20,113,811.60

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Solution

The fourth proportional to 66,172,031.60, 99,258,047.40 and 20,113,811.60 is: 30,170,717.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,172,031.60 : 99,258,047.40 = 20,113,811.60 : x
  2. Step 2: Convert to fraction form
    66,172,031.60/99,258,047.40 = 20,113,811.60/x
  3. Step 3: Cross multiply
    66,172,031.60x = 99,258,047.40 × 20,113,811.60
  4. Step 4: Simplify right side
    66,172,031.60x = 1,996,457,665,187,470
  5. Step 5: Solve for x
    x = 1,996,457,665,187,470/66,172,031.60
  6. Step 6: Final answer
    x = 30,170,717.40

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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.