Home / 66,986,569.86-100,468,710.06-20,288,953.07

Finding the Fourth Proportional to 66,986,569.86, 100,468,710.06 and 20,288,953.07

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Solution

The fourth proportional to 66,986,569.86, 100,468,710.06 and 20,288,953.07 is: 30,430,054.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,986,569.86 : 100,468,710.06 = 20,288,953.07 : x
  2. Step 2: Convert to fraction form
    66,986,569.86/100,468,710.06 = 20,288,953.07/x
  3. Step 3: Cross multiply
    66,986,569.86x = 100,468,710.06 × 20,288,953.07
  4. Step 4: Simplify right side
    66,986,569.86x = 2,038,404,942,908,433.50
  5. Step 5: Solve for x
    x = 2,038,404,942,908,433.50/66,986,569.86
  6. Step 6: Final answer
    x = 30,430,054.07

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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.