Home / 43,459,968.70-65,189,953.05-42,788,122.30

Finding the Fourth Proportional to 43,459,968.70, 65,189,953.05 and 42,788,122.30

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Solution

The fourth proportional to 43,459,968.70, 65,189,953.05 and 42,788,122.30 is: 64,182,183.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,459,968.70 : 65,189,953.05 = 42,788,122.30 : x
  2. Step 2: Convert to fraction form
    43,459,968.70/65,189,953.05 = 42,788,122.30/x
  3. Step 3: Cross multiply
    43,459,968.70x = 65,189,953.05 × 42,788,122.30
  4. Step 4: Simplify right side
    43,459,968.70x = 2,789,355,683,834,657.50
  5. Step 5: Solve for x
    x = 2,789,355,683,834,657.50/43,459,968.70
  6. Step 6: Final answer
    x = 64,182,183.45

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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.