Home / 621,228,680,620-931,019,257,461.85-319,029,075,207.49

Finding the Fourth Proportional to 621,228,680,620, 931,019,257,461.85 and 319,029,075,207.49

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Solution

The fourth proportional to 621,228,680,620, 931,019,257,461.85 and 319,029,075,207.49 is: 478,120,572,945.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    621,228,680,620 : 931,019,257,461.85 = 319,029,075,207.49 : x
  2. Step 2: Convert to fraction form
    621,228,680,620/931,019,257,461.85 = 319,029,075,207.49/x
  3. Step 3: Cross multiply
    621,228,680,620x = 931,019,257,461.85 × 319,029,075,207.49
  4. Step 4: Simplify right side
    621,228,680,620x = 297,022,212,708,418,036,170,752
  5. Step 5: Solve for x
    x = 297,022,212,708,418,036,170,752/621,228,680,620
  6. Step 6: Final answer
    x = 478,120,572,945.83

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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.