Home / 443,233,090.80-664,849,636.20-213,083,708.40

Finding the Fourth Proportional to 443,233,090.80, 664,849,636.20 and 213,083,708.40

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Solution

The fourth proportional to 443,233,090.80, 664,849,636.20 and 213,083,708.40 is: 319,625,562.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,233,090.80 : 664,849,636.20 = 213,083,708.40 : x
  2. Step 2: Convert to fraction form
    443,233,090.80/664,849,636.20 = 213,083,708.40/x
  3. Step 3: Cross multiply
    443,233,090.80x = 664,849,636.20 × 213,083,708.40
  4. Step 4: Simplify right side
    443,233,090.80x = 141,668,626,009,886,896
  5. Step 5: Solve for x
    x = 141,668,626,009,886,896/443,233,090.80
  6. Step 6: Final answer
    x = 319,625,562.60

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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.