Home / 131,108,930.40-196,663,395.60-69,886,927.20

Finding the Fourth Proportional to 131,108,930.40, 196,663,395.60 and 69,886,927.20

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Solution

The fourth proportional to 131,108,930.40, 196,663,395.60 and 69,886,927.20 is: 104,830,390.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,108,930.40 : 196,663,395.60 = 69,886,927.20 : x
  2. Step 2: Convert to fraction form
    131,108,930.40/196,663,395.60 = 69,886,927.20/x
  3. Step 3: Cross multiply
    131,108,930.40x = 196,663,395.60 × 69,886,927.20
  4. Step 4: Simplify right side
    131,108,930.40x = 13,744,200,411,202,000
  5. Step 5: Solve for x
    x = 13,744,200,411,202,000/131,108,930.40
  6. Step 6: Final answer
    x = 104,830,390.80

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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.