Home / 121,277,999.70-181,916,999.55-111,924,638.10

Finding the Fourth Proportional to 121,277,999.70, 181,916,999.55 and 111,924,638.10

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Solution

The fourth proportional to 121,277,999.70, 181,916,999.55 and 111,924,638.10 is: 167,886,957.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,277,999.70 : 181,916,999.55 = 111,924,638.10 : x
  2. Step 2: Convert to fraction form
    121,277,999.70/181,916,999.55 = 111,924,638.10/x
  3. Step 3: Cross multiply
    121,277,999.70x = 181,916,999.55 × 111,924,638.10
  4. Step 4: Simplify right side
    121,277,999.70x = 20,360,994,338,871,612
  5. Step 5: Solve for x
    x = 20,360,994,338,871,612/121,277,999.70
  6. Step 6: Final answer
    x = 167,886,957.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.