Home / 300,753,109-478,557,309

Finding the Third Proportional to 300,753,109 and 478,557,309

Calculator

Solution

The third proportional to 300,753,109 and 478,557,309 is: 761,478,738.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,753,109 : 478,557,309 = 478,557,309 : x
  2. Step 2: Convert to fraction form
    300,753,109/478,557,309 = 478,557,309/x
  3. Step 3: Cross multiply
    300,753,109x = 478,557,309 × 478,557,309
  4. Step 4: Simplify right side
    300,753,109x = 229,017,097,997,321,472
  5. Step 5: Solve for x
    x = 229,017,097,997,321,472/300,753,109
  6. Step 6: Final answer
    x = 761,478,738.35

Related Problems

Find third proportional to 150,376,554.50 and 239,278,654.50
Half scale
Find third proportional to 601,506,218 and 957,114,618
Double scale
Find third proportional to 300,753,111 and 478,557,312
Similar ratio
Find third proportional to 451,129,663.50 and 717,835,963.50
1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.