Home / 763,120,180.80-1,144,829,570.40-326,420,020.80

Finding the Fourth Proportional to 763,120,180.80, 1,144,829,570.40 and 326,420,020.80

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Solution

The fourth proportional to 763,120,180.80, 1,144,829,570.40 and 326,420,020.80 is: 489,693,893.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,120,180.80 : 1,144,829,570.40 = 326,420,020.80 : x
  2. Step 2: Convert to fraction form
    763,120,180.80/1,144,829,570.40 = 326,420,020.80/x
  3. Step 3: Cross multiply
    763,120,180.80x = 1,144,829,570.40 × 326,420,020.80
  4. Step 4: Simplify right side
    763,120,180.80x = 373,695,292,182,423,104
  5. Step 5: Solve for x
    x = 373,695,292,182,423,104/763,120,180.80
  6. Step 6: Final answer
    x = 489,693,893.03

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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.