Home / 199,999,547.78-299,401,611.86-120,976,908.30

Finding the Fourth Proportional to 199,999,547.78, 299,401,611.86 and 120,976,908.30

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Solution

The fourth proportional to 199,999,547.78, 299,401,611.86 and 120,976,908.30 is: 181,103,816.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,999,547.78 : 299,401,611.86 = 120,976,908.30 : x
  2. Step 2: Convert to fraction form
    199,999,547.78/299,401,611.86 = 120,976,908.30/x
  3. Step 3: Cross multiply
    199,999,547.78x = 299,401,611.86 × 120,976,908.30
  4. Step 4: Simplify right side
    199,999,547.78x = 36,220,681,343,490,224
  5. Step 5: Solve for x
    x = 36,220,681,343,490,224/199,999,547.78
  6. Step 6: Final answer
    x = 181,103,816.21

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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.