Home / 72,513,381.84-108,773,684.58-20,705,670.06

Finding the Fourth Proportional to 72,513,381.84, 108,773,684.58 and 20,705,670.06

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Solution

The fourth proportional to 72,513,381.84, 108,773,684.58 and 20,705,670.06 is: 31,059,536.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,513,381.84 : 108,773,684.58 = 20,705,670.06 : x
  2. Step 2: Convert to fraction form
    72,513,381.84/108,773,684.58 = 20,705,670.06/x
  3. Step 3: Cross multiply
    72,513,381.84x = 108,773,684.58 × 20,705,670.06
  4. Step 4: Simplify right side
    72,513,381.84x = 2,252,232,024,123,989.50
  5. Step 5: Solve for x
    x = 2,252,232,024,123,989.50/72,513,381.84
  6. Step 6: Final answer
    x = 31,059,536.42

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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.