Home / 80,864,071.20-121,338,097.20-35,430,458.40

Finding the Fourth Proportional to 80,864,071.20, 121,338,097.20 and 35,430,458.40

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Solution

The fourth proportional to 80,864,071.20, 121,338,097.20 and 35,430,458.40 is: 53,164,085.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,864,071.20 : 121,338,097.20 = 35,430,458.40 : x
  2. Step 2: Convert to fraction form
    80,864,071.20/121,338,097.20 = 35,430,458.40/x
  3. Step 3: Cross multiply
    80,864,071.20x = 121,338,097.20 × 35,430,458.40
  4. Step 4: Simplify right side
    80,864,071.20x = 4,299,064,405,179,756.50
  5. Step 5: Solve for x
    x = 4,299,064,405,179,756.50/80,864,071.20
  6. Step 6: Final answer
    x = 53,164,085.62

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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.