Home / 161,659,325.06-223,089,957.90-87,319,885.17

Finding the Fourth Proportional to 161,659,325.06, 223,089,957.90 and 87,319,885.17

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Solution

The fourth proportional to 161,659,325.06, 223,089,957.90 and 87,319,885.17 is: 120,501,489.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,659,325.06 : 223,089,957.90 = 87,319,885.17 : x
  2. Step 2: Convert to fraction form
    161,659,325.06/223,089,957.90 = 87,319,885.17/x
  3. Step 3: Cross multiply
    161,659,325.06x = 223,089,957.90 × 87,319,885.17
  4. Step 4: Simplify right side
    161,659,325.06x = 19,480,189,506,408,136
  5. Step 5: Solve for x
    x = 19,480,189,506,408,136/161,659,325.06
  6. Step 6: Final answer
    x = 120,501,489.78

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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.