Home / 945,705,668.40-1,416,169,715.40-620,830,609.20

Finding the Fourth Proportional to 945,705,668.40, 1,416,169,715.40 and 620,830,609.20

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Solution

The fourth proportional to 945,705,668.40, 1,416,169,715.40 and 620,830,609.20 is: 929,677,738.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    945,705,668.40 : 1,416,169,715.40 = 620,830,609.20 : x
  2. Step 2: Convert to fraction form
    945,705,668.40/1,416,169,715.40 = 620,830,609.20/x
  3. Step 3: Cross multiply
    945,705,668.40x = 1,416,169,715.40 × 620,830,609.20
  4. Step 4: Simplify right side
    945,705,668.40x = 879,201,507,142,372,736
  5. Step 5: Solve for x
    x = 879,201,507,142,372,736/945,705,668.40
  6. Step 6: Final answer
    x = 929,677,738.56

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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.