Home / 879,309,189.12-1,213,391,490.48-482,829,403.08

Finding the Fourth Proportional to 879,309,189.12, 1,213,391,490.48 and 482,829,403.08

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Solution

The fourth proportional to 879,309,189.12, 1,213,391,490.48 and 482,829,403.08 is: 666,274,271.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    879,309,189.12 : 1,213,391,490.48 = 482,829,403.08 : x
  2. Step 2: Convert to fraction form
    879,309,189.12/1,213,391,490.48 = 482,829,403.08/x
  3. Step 3: Cross multiply
    879,309,189.12x = 1,213,391,490.48 × 482,829,403.08
  4. Step 4: Simplify right side
    879,309,189.12x = 585,861,089,050,809,856
  5. Step 5: Solve for x
    x = 585,861,089,050,809,856/879,309,189.12
  6. Step 6: Final answer
    x = 666,274,271.10

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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.