Home / 724,229,749,310.20-999,458,373,019.50-399,089,985,451.63

Finding the Fourth Proportional to 724,229,749,310.20, 999,458,373,019.50 and 399,089,985,451.63

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Solution

The fourth proportional to 724,229,749,310.20, 999,458,373,019.50 and 399,089,985,451.63 is: 550,755,927,836.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,229,749,310.20 : 999,458,373,019.50 = 399,089,985,451.63 : x
  2. Step 2: Convert to fraction form
    724,229,749,310.20/999,458,373,019.50 = 399,089,985,451.63/x
  3. Step 3: Cross multiply
    724,229,749,310.20x = 999,458,373,019.50 × 399,089,985,451.63
  4. Step 4: Simplify right side
    724,229,749,310.20x = 398,873,827,547,862,035,070,976
  5. Step 5: Solve for x
    x = 398,873,827,547,862,035,070,976/724,229,749,310.20
  6. Step 6: Final answer
    x = 550,755,927,836.12

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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.