Home / 70,340,098.16-97,069,905.40-38,978,671

Finding the Fourth Proportional to 70,340,098.16, 97,069,905.40 and 38,978,671

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Solution

The fourth proportional to 70,340,098.16, 97,069,905.40 and 38,978,671 is: 53,790,881.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,340,098.16 : 97,069,905.40 = 38,978,671 : x
  2. Step 2: Convert to fraction form
    70,340,098.16/97,069,905.40 = 38,978,671/x
  3. Step 3: Cross multiply
    70,340,098.16x = 97,069,905.40 × 38,978,671
  4. Step 4: Simplify right side
    70,340,098.16x = 3,783,655,906,587,723.50
  5. Step 5: Solve for x
    x = 3,783,655,906,587,723.50/70,340,098.16
  6. Step 6: Final answer
    x = 53,790,881.81

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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.