Home / 78,889,408-118,334,110.16-21,381,678.02

Finding the Fourth Proportional to 78,889,408, 118,334,110.16 and 21,381,678.02

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Solution

The fourth proportional to 78,889,408, 118,334,110.16 and 21,381,678.02 is: 32,072,516.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,889,408 : 118,334,110.16 = 21,381,678.02 : x
  2. Step 2: Convert to fraction form
    78,889,408/118,334,110.16 = 21,381,678.02/x
  3. Step 3: Cross multiply
    78,889,408x = 118,334,110.16 × 21,381,678.02
  4. Step 4: Simplify right side
    78,889,408x = 2,530,181,842,224,330.50
  5. Step 5: Solve for x
    x = 2,530,181,842,224,330.50/78,889,408
  6. Step 6: Final answer
    x = 32,072,516.53

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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.