Home / 724,229,749,311.34-999,458,373,021.08-399,089,985,452.74

Finding the Fourth Proportional to 724,229,749,311.34, 999,458,373,021.08 and 399,089,985,452.74

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Solution

The fourth proportional to 724,229,749,311.34, 999,458,373,021.08 and 399,089,985,452.74 is: 550,755,927,837.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,229,749,311.34 : 999,458,373,021.08 = 399,089,985,452.74 : x
  2. Step 2: Convert to fraction form
    724,229,749,311.34/999,458,373,021.08 = 399,089,985,452.74/x
  3. Step 3: Cross multiply
    724,229,749,311.34x = 999,458,373,021.08 × 399,089,985,452.74
  4. Step 4: Simplify right side
    724,229,749,311.34x = 398,873,827,549,601,966,587,904
  5. Step 5: Solve for x
    x = 398,873,827,549,601,966,587,904/724,229,749,311.34
  6. Step 6: Final answer
    x = 550,755,927,837.66

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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.