Home / 78,856,246.60-118,284,369.90-55,897,995.40

Finding the Fourth Proportional to 78,856,246.60, 118,284,369.90 and 55,897,995.40

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Solution

The fourth proportional to 78,856,246.60, 118,284,369.90 and 55,897,995.40 is: 83,846,993.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,856,246.60 : 118,284,369.90 = 55,897,995.40 : x
  2. Step 2: Convert to fraction form
    78,856,246.60/118,284,369.90 = 55,897,995.40/x
  3. Step 3: Cross multiply
    78,856,246.60x = 118,284,369.90 × 55,897,995.40
  4. Step 4: Simplify right side
    78,856,246.60x = 6,611,859,164,562,099
  5. Step 5: Solve for x
    x = 6,611,859,164,562,099/78,856,246.60
  6. Step 6: Final answer
    x = 83,846,993.10

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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.