Home / 778,494,427.65-1,074,325,157.43-421,262,207.52

Finding the Fourth Proportional to 778,494,427.65, 1,074,325,157.43 and 421,262,207.52

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Solution

The fourth proportional to 778,494,427.65, 1,074,325,157.43 and 421,262,207.52 is: 581,343,387.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    778,494,427.65 : 1,074,325,157.43 = 421,262,207.52 : x
  2. Step 2: Convert to fraction form
    778,494,427.65/1,074,325,157.43 = 421,262,207.52/x
  3. Step 3: Cross multiply
    778,494,427.65x = 1,074,325,157.43 × 421,262,207.52
  4. Step 4: Simplify right side
    778,494,427.65x = 452,572,587,413,233,344
  5. Step 5: Solve for x
    x = 452,572,587,413,233,344/778,494,427.65
  6. Step 6: Final answer
    x = 581,343,387.11

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.