Home / 513,852,455.89-708,994,838.30-290,834,137.59

Finding the Fourth Proportional to 513,852,455.89, 708,994,838.30 and 290,834,137.59

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Solution

The fourth proportional to 513,852,455.89, 708,994,838.30 and 290,834,137.59 is: 401,282,313.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    513,852,455.89 : 708,994,838.30 = 290,834,137.59 : x
  2. Step 2: Convert to fraction form
    513,852,455.89/708,994,838.30 = 290,834,137.59/x
  3. Step 3: Cross multiply
    513,852,455.89x = 708,994,838.30 × 290,834,137.59
  4. Step 4: Simplify right side
    513,852,455.89x = 206,199,902,348,629,088
  5. Step 5: Solve for x
    x = 206,199,902,348,629,088/513,852,455.89
  6. Step 6: Final answer
    x = 401,282,313.60

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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.