Home / 136,821,655.44-188,816,337.90-74,938,008.20

Finding the Fourth Proportional to 136,821,655.44, 188,816,337.90 and 74,938,008.20

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Solution

The fourth proportional to 136,821,655.44, 188,816,337.90 and 74,938,008.20 is: 103,415,795.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,821,655.44 : 188,816,337.90 = 74,938,008.20 : x
  2. Step 2: Convert to fraction form
    136,821,655.44/188,816,337.90 = 74,938,008.20/x
  3. Step 3: Cross multiply
    136,821,655.44x = 188,816,337.90 × 74,938,008.20
  4. Step 4: Simplify right side
    136,821,655.44x = 14,149,520,276,900,088
  5. Step 5: Solve for x
    x = 14,149,520,276,900,088/136,821,655.44
  6. Step 6: Final answer
    x = 103,415,795.05

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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.