Home / 85,869,161.20-128,478,718.32-50,873,071.36

Finding the Fourth Proportional to 85,869,161.20, 128,478,718.32 and 50,873,071.36

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Solution

The fourth proportional to 85,869,161.20, 128,478,718.32 and 50,873,071.36 is: 76,117,047.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,869,161.20 : 128,478,718.32 = 50,873,071.36 : x
  2. Step 2: Convert to fraction form
    85,869,161.20/128,478,718.32 = 50,873,071.36/x
  3. Step 3: Cross multiply
    85,869,161.20x = 128,478,718.32 × 50,873,071.36
  4. Step 4: Simplify right side
    85,869,161.20x = 6,536,107,005,334,699
  5. Step 5: Solve for x
    x = 6,536,107,005,334,699/85,869,161.20
  6. Step 6: Final answer
    x = 76,117,047.31

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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.