Home / 43,459,969.20-65,189,953.80-42,788,122.80

Finding the Fourth Proportional to 43,459,969.20, 65,189,953.80 and 42,788,122.80

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Solution

The fourth proportional to 43,459,969.20, 65,189,953.80 and 42,788,122.80 is: 64,182,184.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,459,969.20 : 65,189,953.80 = 42,788,122.80 : x
  2. Step 2: Convert to fraction form
    43,459,969.20/65,189,953.80 = 42,788,122.80/x
  3. Step 3: Cross multiply
    43,459,969.20x = 65,189,953.80 × 42,788,122.80
  4. Step 4: Simplify right side
    43,459,969.20x = 2,789,355,748,520,726.50
  5. Step 5: Solve for x
    x = 2,789,355,748,520,726.50/43,459,969.20
  6. Step 6: Final answer
    x = 64,182,184.20

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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.