Home / 210,634,626.15-290,650,315.74-121,355,777.64

Finding the Fourth Proportional to 210,634,626.15, 290,650,315.74 and 121,355,777.64

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Solution

The fourth proportional to 210,634,626.15, 290,650,315.74 and 121,355,777.64 is: 167,456,299.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,634,626.15 : 290,650,315.74 = 121,355,777.64 : x
  2. Step 2: Convert to fraction form
    210,634,626.15/290,650,315.74 = 121,355,777.64/x
  3. Step 3: Cross multiply
    210,634,626.15x = 290,650,315.74 × 121,355,777.64
  4. Step 4: Simplify right side
    210,634,626.15x = 35,272,095,087,939,232
  5. Step 5: Solve for x
    x = 35,272,095,087,939,232/210,634,626.15
  6. Step 6: Final answer
    x = 167,456,299.72

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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.