Home / 210,369,416.96-290,338,634.82-121,059,525.71

Finding the Fourth Proportional to 210,369,416.96, 290,338,634.82 and 121,059,525.71

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Solution

The fourth proportional to 210,369,416.96, 290,338,634.82 and 121,059,525.71 is: 167,078,741.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,369,416.96 : 290,338,634.82 = 121,059,525.71 : x
  2. Step 2: Convert to fraction form
    210,369,416.96/290,338,634.82 = 121,059,525.71/x
  3. Step 3: Cross multiply
    210,369,416.96x = 290,338,634.82 × 121,059,525.71
  4. Step 4: Simplify right side
    210,369,416.96x = 35,148,257,426,598,088
  5. Step 5: Solve for x
    x = 35,148,257,426,598,088/210,369,416.96
  6. Step 6: Final answer
    x = 167,078,741.46

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1.5x scale

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.