Home / 326,616,485.40-489,924,728.10-223,152,139.80

Finding the Fourth Proportional to 326,616,485.40, 489,924,728.10 and 223,152,139.80

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Solution

The fourth proportional to 326,616,485.40, 489,924,728.10 and 223,152,139.80 is: 334,728,209.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,616,485.40 : 489,924,728.10 = 223,152,139.80 : x
  2. Step 2: Convert to fraction form
    326,616,485.40/489,924,728.10 = 223,152,139.80/x
  3. Step 3: Cross multiply
    326,616,485.40x = 489,924,728.10 × 223,152,139.80
  4. Step 4: Simplify right side
    326,616,485.40x = 109,327,751,416,448,192
  5. Step 5: Solve for x
    x = 109,327,751,416,448,192/326,616,485.40
  6. Step 6: Final answer
    x = 334,728,209.70

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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.