Home / 389,684,979.94-537,760,990.74-211,064,424.34

Finding the Fourth Proportional to 389,684,979.94, 537,760,990.74 and 211,064,424.34

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Solution

The fourth proportional to 389,684,979.94, 537,760,990.74 and 211,064,424.34 is: 291,266,586.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,684,979.94 : 537,760,990.74 = 211,064,424.34 : x
  2. Step 2: Convert to fraction form
    389,684,979.94/537,760,990.74 = 211,064,424.34/x
  3. Step 3: Cross multiply
    389,684,979.94x = 537,760,990.74 × 211,064,424.34
  4. Step 4: Simplify right side
    389,684,979.94x = 113,502,213,943,046,176
  5. Step 5: Solve for x
    x = 113,502,213,943,046,176/389,684,979.94
  6. Step 6: Final answer
    x = 291,266,586.57

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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.