Home / 74,715,237.60-112,072,856.40-66,401,138.40

Finding the Fourth Proportional to 74,715,237.60, 112,072,856.40 and 66,401,138.40

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Solution

The fourth proportional to 74,715,237.60, 112,072,856.40 and 66,401,138.40 is: 99,601,707.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,715,237.60 : 112,072,856.40 = 66,401,138.40 : x
  2. Step 2: Convert to fraction form
    74,715,237.60/112,072,856.40 = 66,401,138.40/x
  3. Step 3: Cross multiply
    74,715,237.60x = 112,072,856.40 × 66,401,138.40
  4. Step 4: Simplify right side
    74,715,237.60x = 7,441,765,248,699,726
  5. Step 5: Solve for x
    x = 7,441,765,248,699,726/74,715,237.60
  6. Step 6: Final answer
    x = 99,601,707.60

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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.