Home / 130,190,299.20-195,214,492.80-39,302,078.40

Finding the Fourth Proportional to 130,190,299.20, 195,214,492.80 and 39,302,078.40

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Solution

The fourth proportional to 130,190,299.20, 195,214,492.80 and 39,302,078.40 is: 58,931,697.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    130,190,299.20 : 195,214,492.80 = 39,302,078.40 : x
  2. Step 2: Convert to fraction form
    130,190,299.20/195,214,492.80 = 39,302,078.40/x
  3. Step 3: Cross multiply
    130,190,299.20x = 195,214,492.80 × 39,302,078.40
  4. Step 4: Simplify right side
    130,190,299.20x = 7,672,335,300,841,836
  5. Step 5: Solve for x
    x = 7,672,335,300,841,836/130,190,299.20
  6. Step 6: Final answer
    x = 58,931,697.28

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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.