Home / 21,221,894.40-31,839,567.30-7,574,738.28

Finding the Fourth Proportional to 21,221,894.40, 31,839,567.30 and 7,574,738.28

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Solution

The fourth proportional to 21,221,894.40, 31,839,567.30 and 7,574,738.28 is: 11,364,508.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,221,894.40 : 31,839,567.30 = 7,574,738.28 : x
  2. Step 2: Convert to fraction form
    21,221,894.40/31,839,567.30 = 7,574,738.28/x
  3. Step 3: Cross multiply
    21,221,894.40x = 31,839,567.30 × 7,574,738.28
  4. Step 4: Simplify right side
    21,221,894.40x = 241,176,389,245,946.25
  5. Step 5: Solve for x
    x = 241,176,389,245,946.25/21,221,894.40
  6. Step 6: Final answer
    x = 11,364,508.03

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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.