Home / 819,140,412.90-1,229,585,005.10-353,031,863.13

Finding the Fourth Proportional to 819,140,412.90, 1,229,585,005.10 and 353,031,863.13

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Solution

The fourth proportional to 819,140,412.90, 1,229,585,005.10 and 353,031,863.13 is: 529,924,636.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,140,412.90 : 1,229,585,005.10 = 353,031,863.13 : x
  2. Step 2: Convert to fraction form
    819,140,412.90/1,229,585,005.10 = 353,031,863.13/x
  3. Step 3: Cross multiply
    819,140,412.90x = 1,229,585,005.10 × 353,031,863.13
  4. Step 4: Simplify right side
    819,140,412.90x = 434,082,685,227,163,520
  5. Step 5: Solve for x
    x = 434,082,685,227,163,520/819,140,412.90
  6. Step 6: Final answer
    x = 529,924,636.11

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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.