Home / 210,502,114.93-290,460,646.78-121,176,792.63

Finding the Fourth Proportional to 210,502,114.93, 290,460,646.78 and 121,176,792.63

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Solution

The fourth proportional to 210,502,114.93, 290,460,646.78 and 121,176,792.63 is: 167,205,396.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,502,114.93 : 290,460,646.78 = 121,176,792.63 : x
  2. Step 2: Convert to fraction form
    210,502,114.93/290,460,646.78 = 121,176,792.63/x
  3. Step 3: Cross multiply
    210,502,114.93x = 290,460,646.78 × 121,176,792.63
  4. Step 4: Simplify right side
    210,502,114.93x = 35,197,089,562,035,732
  5. Step 5: Solve for x
    x = 35,197,089,562,035,732/210,502,114.93
  6. Step 6: Final answer
    x = 167,205,396.36

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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.