Home / 78,881,658.30-118,322,487.45-36,414,330.30

Finding the Fourth Proportional to 78,881,658.30, 118,322,487.45 and 36,414,330.30

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Solution

The fourth proportional to 78,881,658.30, 118,322,487.45 and 36,414,330.30 is: 54,621,495.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,881,658.30 : 118,322,487.45 = 36,414,330.30 : x
  2. Step 2: Convert to fraction form
    78,881,658.30/118,322,487.45 = 36,414,330.30/x
  3. Step 3: Cross multiply
    78,881,658.30x = 118,322,487.45 × 36,414,330.30
  4. Step 4: Simplify right side
    78,881,658.30x = 4,308,634,139,921,904.50
  5. Step 5: Solve for x
    x = 4,308,634,139,921,904.50/78,881,658.30
  6. Step 6: Final answer
    x = 54,621,495.45

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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.