Home / 206,687,252.40-310,030,878.60-70,372,635.90

Finding the Fourth Proportional to 206,687,252.40, 310,030,878.60 and 70,372,635.90

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Solution

The fourth proportional to 206,687,252.40, 310,030,878.60 and 70,372,635.90 is: 105,558,953.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,687,252.40 : 310,030,878.60 = 70,372,635.90 : x
  2. Step 2: Convert to fraction form
    206,687,252.40/310,030,878.60 = 70,372,635.90/x
  3. Step 3: Cross multiply
    206,687,252.40x = 310,030,878.60 × 70,372,635.90
  4. Step 4: Simplify right side
    206,687,252.40x = 21,817,690,137,474,904
  5. Step 5: Solve for x
    x = 21,817,690,137,474,904/206,687,252.40
  6. Step 6: Final answer
    x = 105,558,953.85

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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.