Home / 103,518,421.20-155,145,755.70-55,019,509.20

Finding the Fourth Proportional to 103,518,421.20, 155,145,755.70 and 55,019,509.20

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Solution

The fourth proportional to 103,518,421.20, 155,145,755.70 and 55,019,509.20 is: 82,459,172.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,518,421.20 : 155,145,755.70 = 55,019,509.20 : x
  2. Step 2: Convert to fraction form
    103,518,421.20/155,145,755.70 = 55,019,509.20/x
  3. Step 3: Cross multiply
    103,518,421.20x = 155,145,755.70 × 55,019,509.20
  4. Step 4: Simplify right side
    103,518,421.20x = 8,536,043,333,077,102
  5. Step 5: Solve for x
    x = 8,536,043,333,077,102/103,518,421.20
  6. Step 6: Final answer
    x = 82,459,172.33

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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.