Home / 210,603,479.40-290,647,521.54-117,792,564.84

Finding the Fourth Proportional to 210,603,479.40, 290,647,521.54 and 117,792,564.84

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Solution

The fourth proportional to 210,603,479.40, 290,647,521.54 and 117,792,564.84 is: 162,561,972.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,603,479.40 : 290,647,521.54 = 117,792,564.84 : x
  2. Step 2: Convert to fraction form
    210,603,479.40/290,647,521.54 = 117,792,564.84/x
  3. Step 3: Cross multiply
    210,603,479.40x = 290,647,521.54 × 117,792,564.84
  4. Step 4: Simplify right side
    210,603,479.40x = 34,236,117,026,585,752
  5. Step 5: Solve for x
    x = 34,236,117,026,585,752/210,603,479.40
  6. Step 6: Final answer
    x = 162,561,972.50

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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.