Home / 65,810,688.19-90,817,633.05-36,441,390.18

Finding the Fourth Proportional to 65,810,688.19, 90,817,633.05 and 36,441,390.18

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Solution

The fourth proportional to 65,810,688.19, 90,817,633.05 and 36,441,390.18 is: 50,288,500.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,810,688.19 : 90,817,633.05 = 36,441,390.18 : x
  2. Step 2: Convert to fraction form
    65,810,688.19/90,817,633.05 = 36,441,390.18/x
  3. Step 3: Cross multiply
    65,810,688.19x = 90,817,633.05 × 36,441,390.18
  4. Step 4: Simplify right side
    65,810,688.19x = 3,309,520,801,199,113.50
  5. Step 5: Solve for x
    x = 3,309,520,801,199,113.50/65,810,688.19
  6. Step 6: Final answer
    x = 50,288,500.13

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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.