Home / 161,659,328.31-223,089,962.40-87,319,888.39

Finding the Fourth Proportional to 161,659,328.31, 223,089,962.40 and 87,319,888.39

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Solution

The fourth proportional to 161,659,328.31, 223,089,962.40 and 87,319,888.39 is: 120,501,494.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    161,659,328.31 : 223,089,962.40 = 87,319,888.39 : x
  2. Step 2: Convert to fraction form
    161,659,328.31/223,089,962.40 = 87,319,888.39/x
  3. Step 3: Cross multiply
    161,659,328.31x = 223,089,962.40 × 87,319,888.39
  4. Step 4: Simplify right side
    161,659,328.31x = 19,480,190,617,260,700
  5. Step 5: Solve for x
    x = 19,480,190,617,260,700/161,659,328.31
  6. Step 6: Final answer
    x = 120,501,494.23

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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.