Home / 135,430,559.20-186,910,126.59-80,426,415.70

Finding the Fourth Proportional to 135,430,559.20, 186,910,126.59 and 80,426,415.70

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Solution

The fourth proportional to 135,430,559.20, 186,910,126.59 and 80,426,415.70 is: 110,997,928.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,430,559.20 : 186,910,126.59 = 80,426,415.70 : x
  2. Step 2: Convert to fraction form
    135,430,559.20/186,910,126.59 = 80,426,415.70/x
  3. Step 3: Cross multiply
    135,430,559.20x = 186,910,126.59 × 80,426,415.70
  4. Step 4: Simplify right side
    135,430,559.20x = 15,032,511,539,666,964
  5. Step 5: Solve for x
    x = 15,032,511,539,666,964/135,430,559.20
  6. Step 6: Final answer
    x = 110,997,928.60

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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.