Home / 258,299,852.49-387,449,807.90-104,946,012.81

Finding the Fourth Proportional to 258,299,852.49, 387,449,807.90 and 104,946,012.81

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Solution

The fourth proportional to 258,299,852.49, 387,449,807.90 and 104,946,012.81 is: 157,419,031.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,299,852.49 : 387,449,807.90 = 104,946,012.81 : x
  2. Step 2: Convert to fraction form
    258,299,852.49/387,449,807.90 = 104,946,012.81/x
  3. Step 3: Cross multiply
    258,299,852.49x = 387,449,807.90 × 104,946,012.81
  4. Step 4: Simplify right side
    258,299,852.49x = 40,661,312,502,580,712
  5. Step 5: Solve for x
    x = 40,661,312,502,580,712/258,299,852.49
  6. Step 6: Final answer
    x = 157,419,031.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.