Home / 13,076,990.87-18,045,965.79-7,570,598.72

Finding the Fourth Proportional to 13,076,990.87, 18,045,965.79 and 7,570,598.72

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Solution

The fourth proportional to 13,076,990.87, 18,045,965.79 and 7,570,598.72 is: 10,447,263.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,076,990.87 : 18,045,965.79 = 7,570,598.72 : x
  2. Step 2: Convert to fraction form
    13,076,990.87/18,045,965.79 = 7,570,598.72/x
  3. Step 3: Cross multiply
    13,076,990.87x = 18,045,965.79 × 7,570,598.72
  4. Step 4: Simplify right side
    13,076,990.87x = 136,618,765,510,937.78
  5. Step 5: Solve for x
    x = 136,618,765,510,937.78/13,076,990.87
  6. Step 6: Final answer
    x = 10,447,263.20

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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.