Home / 524,016,006.40-786,024,009.60-443,394,438.40

Finding the Fourth Proportional to 524,016,006.40, 786,024,009.60 and 443,394,438.40

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Solution

The fourth proportional to 524,016,006.40, 786,024,009.60 and 443,394,438.40 is: 665,091,657.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    524,016,006.40 : 786,024,009.60 = 443,394,438.40 : x
  2. Step 2: Convert to fraction form
    524,016,006.40/786,024,009.60 = 443,394,438.40/x
  3. Step 3: Cross multiply
    524,016,006.40x = 786,024,009.60 × 443,394,438.40
  4. Step 4: Simplify right side
    524,016,006.40x = 348,518,674,305,508,224
  5. Step 5: Solve for x
    x = 348,518,674,305,508,224/524,016,006.40
  6. Step 6: Final answer
    x = 665,091,657.60

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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.