Home / 71,853,622.81-107,778,886.76-20,036,844.90

Finding the Fourth Proportional to 71,853,622.81, 107,778,886.76 and 20,036,844.90

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Solution

The fourth proportional to 71,853,622.81, 107,778,886.76 and 20,036,844.90 is: 30,054,835.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,853,622.81 : 107,778,886.76 = 20,036,844.90 : x
  2. Step 2: Convert to fraction form
    71,853,622.81/107,778,886.76 = 20,036,844.90/x
  3. Step 3: Cross multiply
    71,853,622.81x = 107,778,886.76 × 20,036,844.90
  4. Step 4: Simplify right side
    71,853,622.81x = 2,159,548,837,554,875.50
  5. Step 5: Solve for x
    x = 2,159,548,837,554,875.50/71,853,622.81
  6. Step 6: Final answer
    x = 30,054,835.83

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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.