Home / 121,871,574.86-168,183,099.29-66,116,995.11

Finding the Fourth Proportional to 121,871,574.86, 168,183,099.29 and 66,116,995.11

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Solution

The fourth proportional to 121,871,574.86, 168,183,099.29 and 66,116,995.11 is: 91,241,630.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,871,574.86 : 168,183,099.29 = 66,116,995.11 : x
  2. Step 2: Convert to fraction form
    121,871,574.86/168,183,099.29 = 66,116,995.11/x
  3. Step 3: Cross multiply
    121,871,574.86x = 168,183,099.29 × 66,116,995.11
  4. Step 4: Simplify right side
    121,871,574.86x = 11,119,761,153,506,866
  5. Step 5: Solve for x
    x = 11,119,761,153,506,866/121,871,574.86
  6. Step 6: Final answer
    x = 91,241,630.11

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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.