Home / 56,388,378.30-77,820,720.63-31,608,169.02

Finding the Fourth Proportional to 56,388,378.30, 77,820,720.63 and 31,608,169.02

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Solution

The fourth proportional to 56,388,378.30, 77,820,720.63 and 31,608,169.02 is: 43,621,940.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,388,378.30 : 77,820,720.63 = 31,608,169.02 : x
  2. Step 2: Convert to fraction form
    56,388,378.30/77,820,720.63 = 31,608,169.02/x
  3. Step 3: Cross multiply
    56,388,378.30x = 77,820,720.63 × 31,608,169.02
  4. Step 4: Simplify right side
    56,388,378.30x = 2,459,770,490,931,240.50
  5. Step 5: Solve for x
    x = 2,459,770,490,931,240.50/56,388,378.30
  6. Step 6: Final answer
    x = 43,621,940.64

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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.