Home / 121,874,365.48-168,186,943.75-66,119,783.01

Finding the Fourth Proportional to 121,874,365.48, 168,186,943.75 and 66,119,783.01

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Solution

The fourth proportional to 121,874,365.48, 168,186,943.75 and 66,119,783.01 is: 91,245,473.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,874,365.48 : 168,186,943.75 = 66,119,783.01 : x
  2. Step 2: Convert to fraction form
    121,874,365.48/168,186,943.75 = 66,119,783.01/x
  3. Step 3: Cross multiply
    121,874,365.48x = 168,186,943.75 × 66,119,783.01
  4. Step 4: Simplify right side
    121,874,365.48x = 11,120,484,225,865,076
  5. Step 5: Solve for x
    x = 11,120,484,225,865,076/121,874,365.48
  6. Step 6: Final answer
    x = 91,245,473.83

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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.