Home / 498,510,972.36-687,971,479.14-300,334,852.08

Finding the Fourth Proportional to 498,510,972.36, 687,971,479.14 and 300,334,852.08

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Solution

The fourth proportional to 498,510,972.36, 687,971,479.14 and 300,334,852.08 is: 414,477,963.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    498,510,972.36 : 687,971,479.14 = 300,334,852.08 : x
  2. Step 2: Convert to fraction form
    498,510,972.36/687,971,479.14 = 300,334,852.08/x
  3. Step 3: Cross multiply
    498,510,972.36x = 687,971,479.14 × 300,334,852.08
  4. Step 4: Simplify right side
    498,510,972.36x = 206,621,812,422,770,688
  5. Step 5: Solve for x
    x = 206,621,812,422,770,688/498,510,972.36
  6. Step 6: Final answer
    x = 414,477,963.13

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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.