Home / 139,969,071.20-209,953,606.80-37,743,442.40

Finding the Fourth Proportional to 139,969,071.20, 209,953,606.80 and 37,743,442.40

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Solution

The fourth proportional to 139,969,071.20, 209,953,606.80 and 37,743,442.40 is: 56,615,163.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    139,969,071.20 : 209,953,606.80 = 37,743,442.40 : x
  2. Step 2: Convert to fraction form
    139,969,071.20/209,953,606.80 = 37,743,442.40/x
  3. Step 3: Cross multiply
    139,969,071.20x = 209,953,606.80 × 37,743,442.40
  4. Step 4: Simplify right side
    139,969,071.20x = 7,924,371,864,928,048
  5. Step 5: Solve for x
    x = 7,924,371,864,928,048/139,969,071.20
  6. Step 6: Final answer
    x = 56,615,163.60

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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.