Home / 42,705,286.40-64,051,708.80-12,409,990.40

Finding the Fourth Proportional to 42,705,286.40, 64,051,708.80 and 12,409,990.40

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Solution

The fourth proportional to 42,705,286.40, 64,051,708.80 and 12,409,990.40 is: 18,613,177.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,705,286.40 : 64,051,708.80 = 12,409,990.40 : x
  2. Step 2: Convert to fraction form
    42,705,286.40/64,051,708.80 = 12,409,990.40/x
  3. Step 3: Cross multiply
    42,705,286.40x = 64,051,708.80 × 12,409,990.40
  4. Step 4: Simplify right side
    42,705,286.40x = 794,881,091,311,595.50
  5. Step 5: Solve for x
    x = 794,881,091,311,595.50/42,705,286.40
  6. Step 6: Final answer
    x = 18,613,177.86

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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.