Home / 77,008,830.60-115,513,245.90-31,603,211.40

Finding the Fourth Proportional to 77,008,830.60, 115,513,245.90 and 31,603,211.40

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Solution

The fourth proportional to 77,008,830.60, 115,513,245.90 and 31,603,211.40 is: 47,404,817.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,008,830.60 : 115,513,245.90 = 31,603,211.40 : x
  2. Step 2: Convert to fraction form
    77,008,830.60/115,513,245.90 = 31,603,211.40/x
  3. Step 3: Cross multiply
    77,008,830.60x = 115,513,245.90 × 31,603,211.40
  4. Step 4: Simplify right side
    77,008,830.60x = 3,650,589,529,677,883.50
  5. Step 5: Solve for x
    x = 3,650,589,529,677,883.50/77,008,830.60
  6. Step 6: Final answer
    x = 47,404,817.10

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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.