Home / 210,502,116.92-290,460,649.56-121,176,794.64

Finding the Fourth Proportional to 210,502,116.92, 290,460,649.56 and 121,176,794.64

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Solution

The fourth proportional to 210,502,116.92, 290,460,649.56 and 121,176,794.64 is: 167,205,399.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,502,116.92 : 290,460,649.56 = 121,176,794.64 : x
  2. Step 2: Convert to fraction form
    210,502,116.92/290,460,649.56 = 121,176,794.64/x
  3. Step 3: Cross multiply
    210,502,116.92x = 290,460,649.56 × 121,176,794.64
  4. Step 4: Simplify right side
    210,502,116.92x = 35,197,090,482,733,128
  5. Step 5: Solve for x
    x = 35,197,090,482,733,128/210,502,116.92
  6. Step 6: Final answer
    x = 167,205,399.16

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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.