Home / 402,946,965.60-604,420,448.40-315,271,010.40

Finding the Fourth Proportional to 402,946,965.60, 604,420,448.40 and 315,271,010.40

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Solution

The fourth proportional to 402,946,965.60, 604,420,448.40 and 315,271,010.40 is: 472,906,515.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,946,965.60 : 604,420,448.40 = 315,271,010.40 : x
  2. Step 2: Convert to fraction form
    402,946,965.60/604,420,448.40 = 315,271,010.40/x
  3. Step 3: Cross multiply
    402,946,965.60x = 604,420,448.40 × 315,271,010.40
  4. Step 4: Simplify right side
    402,946,965.60x = 190,556,245,473,489,056
  5. Step 5: Solve for x
    x = 190,556,245,473,489,056/402,946,965.60
  6. Step 6: Final answer
    x = 472,906,515.60

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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.