Home / 313,372,940.80-470,213,894.40-140,971,763.20

Finding the Fourth Proportional to 313,372,940.80, 470,213,894.40 and 140,971,763.20

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Solution

The fourth proportional to 313,372,940.80, 470,213,894.40 and 140,971,763.20 is: 211,527,139.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,372,940.80 : 470,213,894.40 = 140,971,763.20 : x
  2. Step 2: Convert to fraction form
    313,372,940.80/470,213,894.40 = 140,971,763.20/x
  3. Step 3: Cross multiply
    313,372,940.80x = 470,213,894.40 × 140,971,763.20
  4. Step 4: Simplify right side
    313,372,940.80x = 66,286,881,774,706,600
  5. Step 5: Solve for x
    x = 66,286,881,774,706,600/313,372,940.80
  6. Step 6: Final answer
    x = 211,527,139.53

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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.