Home / 513,124,561.22-708,084,622.41-290,092,908.21

Finding the Fourth Proportional to 513,124,561.22, 708,084,622.41 and 290,092,908.21

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Solution

The fourth proportional to 513,124,561.22, 708,084,622.41 and 290,092,908.21 is: 400,312,795.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,124,561.22 : 708,084,622.41 = 290,092,908.21 : x
  2. Step 2: Convert to fraction form
    513,124,561.22/708,084,622.41 = 290,092,908.21/x
  3. Step 3: Cross multiply
    513,124,561.22x = 708,084,622.41 × 290,092,908.21
  4. Step 4: Simplify right side
    513,124,561.22x = 205,410,327,373,696,608
  5. Step 5: Solve for x
    x = 205,410,327,373,696,608/513,124,561.22
  6. Step 6: Final answer
    x = 400,312,795.18

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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.