Home / 78,003,674.40-117,005,511.60-37,692,890.40

Finding the Fourth Proportional to 78,003,674.40, 117,005,511.60 and 37,692,890.40

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Solution

The fourth proportional to 78,003,674.40, 117,005,511.60 and 37,692,890.40 is: 56,539,335.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,003,674.40 : 117,005,511.60 = 37,692,890.40 : x
  2. Step 2: Convert to fraction form
    78,003,674.40/117,005,511.60 = 37,692,890.40/x
  3. Step 3: Cross multiply
    78,003,674.40x = 117,005,511.60 × 37,692,890.40
  4. Step 4: Simplify right side
    78,003,674.40x = 4,410,275,924,934,728
  5. Step 5: Solve for x
    x = 4,410,275,924,934,728/78,003,674.40
  6. Step 6: Final answer
    x = 56,539,335.60

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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.