Home / 210,621,612.15-290,656,238.67-117,802,124.55

Finding the Fourth Proportional to 210,621,612.15, 290,656,238.67 and 117,802,124.55

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Solution

The fourth proportional to 210,621,612.15, 290,656,238.67 and 117,802,124.55 is: 162,566,044.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,621,612.15 : 290,656,238.67 = 117,802,124.55 : x
  2. Step 2: Convert to fraction form
    210,621,612.15/290,656,238.67 = 117,802,124.55/x
  3. Step 3: Cross multiply
    210,621,612.15x = 290,656,238.67 × 117,802,124.55
  4. Step 4: Simplify right side
    210,621,612.15x = 34,239,922,429,037,868
  5. Step 5: Solve for x
    x = 34,239,922,429,037,868/210,621,612.15
  6. Step 6: Final answer
    x = 162,566,044.76

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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.