Home / 74,706,912.80-112,060,369.20-54,140,146.10

Finding the Fourth Proportional to 74,706,912.80, 112,060,369.20 and 54,140,146.10

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Solution

The fourth proportional to 74,706,912.80, 112,060,369.20 and 54,140,146.10 is: 81,210,219.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,706,912.80 : 112,060,369.20 = 54,140,146.10 : x
  2. Step 2: Convert to fraction form
    74,706,912.80/112,060,369.20 = 54,140,146.10/x
  3. Step 3: Cross multiply
    74,706,912.80x = 112,060,369.20 × 54,140,146.10
  4. Step 4: Simplify right side
    74,706,912.80x = 6,066,964,760,507,940
  5. Step 5: Solve for x
    x = 6,066,964,760,507,940/74,706,912.80
  6. Step 6: Final answer
    x = 81,210,219.15

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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.