Home / 830,507,220.28-1,245,884,685.20-305,835,971.88

Finding the Fourth Proportional to 830,507,220.28, 1,245,884,685.20 and 305,835,971.88

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Solution

The fourth proportional to 830,507,220.28, 1,245,884,685.20 and 305,835,971.88 is: 458,799,567.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    830,507,220.28 : 1,245,884,685.20 = 305,835,971.88 : x
  2. Step 2: Convert to fraction form
    830,507,220.28/1,245,884,685.20 = 305,835,971.88/x
  3. Step 3: Cross multiply
    830,507,220.28x = 1,245,884,685.20 × 305,835,971.88
  4. Step 4: Simplify right side
    830,507,220.28x = 381,036,353,548,549,888
  5. Step 5: Solve for x
    x = 381,036,353,548,549,888/830,507,220.28
  6. Step 6: Final answer
    x = 458,799,567.59

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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.