Home / 12,705,589.47-19,061,941.73-5,137,869.63

Finding the Fourth Proportional to 12,705,589.47, 19,061,941.73 and 5,137,869.63

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Solution

The fourth proportional to 12,705,589.47, 19,061,941.73 and 5,137,869.63 is: 7,708,243.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,705,589.47 : 19,061,941.73 = 5,137,869.63 : x
  2. Step 2: Convert to fraction form
    12,705,589.47/19,061,941.73 = 5,137,869.63/x
  3. Step 3: Cross multiply
    12,705,589.47x = 19,061,941.73 × 5,137,869.63
  4. Step 4: Simplify right side
    12,705,589.47x = 97,937,771,477,707.31
  5. Step 5: Solve for x
    x = 97,937,771,477,707.31/12,705,589.47
  6. Step 6: Final answer
    x = 7,708,243.03

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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.