Home / 210,603,483.40-290,647,527.06-117,792,568.84

Finding the Fourth Proportional to 210,603,483.40, 290,647,527.06 and 117,792,568.84

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Solution

The fourth proportional to 210,603,483.40, 290,647,527.06 and 117,792,568.84 is: 162,561,978.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,603,483.40 : 290,647,527.06 = 117,792,568.84 : x
  2. Step 2: Convert to fraction form
    210,603,483.40/290,647,527.06 = 117,792,568.84/x
  3. Step 3: Cross multiply
    210,603,483.40x = 290,647,527.06 × 117,792,568.84
  4. Step 4: Simplify right side
    210,603,483.40x = 34,236,118,839,390,816
  5. Step 5: Solve for x
    x = 34,236,118,839,390,816/210,603,483.40
  6. Step 6: Final answer
    x = 162,561,978.02

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.