Home / 66,900,749.32-100,351,141.26-19,031,693.32

Finding the Fourth Proportional to 66,900,749.32, 100,351,141.26 and 19,031,693.32

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Solution

The fourth proportional to 66,900,749.32, 100,351,141.26 and 19,031,693.32 is: 28,547,544.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,900,749.32 : 100,351,141.26 = 19,031,693.32 : x
  2. Step 2: Convert to fraction form
    66,900,749.32/100,351,141.26 = 19,031,693.32/x
  3. Step 3: Cross multiply
    66,900,749.32x = 100,351,141.26 × 19,031,693.32
  4. Step 4: Simplify right side
    66,900,749.32x = 1,909,852,144,772,318.50
  5. Step 5: Solve for x
    x = 1,909,852,144,772,318.50/66,900,749.32
  6. Step 6: Final answer
    x = 28,547,544.90

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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.