Home / 210,502,115.43-290,460,647.47-121,176,793.13

Finding the Fourth Proportional to 210,502,115.43, 290,460,647.47 and 121,176,793.13

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Solution

The fourth proportional to 210,502,115.43, 290,460,647.47 and 121,176,793.13 is: 167,205,397.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,502,115.43 : 290,460,647.47 = 121,176,793.13 : x
  2. Step 2: Convert to fraction form
    210,502,115.43/290,460,647.47 = 121,176,793.13/x
  3. Step 3: Cross multiply
    210,502,115.43x = 290,460,647.47 × 121,176,793.13
  4. Step 4: Simplify right side
    210,502,115.43x = 35,197,089,790,878,048
  5. Step 5: Solve for x
    x = 35,197,089,790,878,048/210,502,115.43
  6. Step 6: Final answer
    x = 167,205,397.05

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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.