Home / 478,431,191-660,235,511.76-258,414,617

Finding the Fourth Proportional to 478,431,191, 660,235,511.76 and 258,414,617

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Solution

The fourth proportional to 478,431,191, 660,235,511.76 and 258,414,617 is: 356,612,424.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,431,191 : 660,235,511.76 = 258,414,617 : x
  2. Step 2: Convert to fraction form
    478,431,191/660,235,511.76 = 258,414,617/x
  3. Step 3: Cross multiply
    478,431,191x = 660,235,511.76 × 258,414,617
  4. Step 4: Simplify right side
    478,431,191x = 170,614,506,901,259,392
  5. Step 5: Solve for x
    x = 170,614,506,901,259,392/478,431,191
  6. Step 6: Final answer
    x = 356,612,424.34

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1.5x scale

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.