Home / 135,158,671.05-186,522,900.78-76,420,075.03

Finding the Fourth Proportional to 135,158,671.05, 186,522,900.78 and 76,420,075.03

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Solution

The fourth proportional to 135,158,671.05, 186,522,900.78 and 76,420,075.03 is: 105,461,928.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,158,671.05 : 186,522,900.78 = 76,420,075.03 : x
  2. Step 2: Convert to fraction form
    135,158,671.05/186,522,900.78 = 76,420,075.03/x
  3. Step 3: Cross multiply
    135,158,671.05x = 186,522,900.78 × 76,420,075.03
  4. Step 4: Simplify right side
    135,158,671.05x = 14,254,094,072,420,846
  5. Step 5: Solve for x
    x = 14,254,094,072,420,846/135,158,671.05
  6. Step 6: Final answer
    x = 105,461,928.28

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.