Home / 78,889,480.86-118,334,219.47-21,381,750.89

Finding the Fourth Proportional to 78,889,480.86, 118,334,219.47 and 21,381,750.89

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Solution

The fourth proportional to 78,889,480.86, 118,334,219.47 and 21,381,750.89 is: 32,072,625.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,889,480.86 : 118,334,219.47 = 21,381,750.89 : x
  2. Step 2: Convert to fraction form
    78,889,480.86/118,334,219.47 = 21,381,750.89/x
  3. Step 3: Cross multiply
    78,889,480.86x = 118,334,219.47 × 21,381,750.89
  4. Step 4: Simplify right side
    78,889,480.86x = 2,530,192,802,470,128
  5. Step 5: Solve for x
    x = 2,530,192,802,470,128/78,889,480.86
  6. Step 6: Final answer
    x = 32,072,625.84

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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.