Home / 155,136,984.48-214,089,686.64-85,520,837.88

Finding the Fourth Proportional to 155,136,984.48, 214,089,686.64 and 85,520,837.88

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Solution

The fourth proportional to 155,136,984.48, 214,089,686.64 and 85,520,837.88 is: 118,019,113.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    155,136,984.48 : 214,089,686.64 = 85,520,837.88 : x
  2. Step 2: Convert to fraction form
    155,136,984.48/214,089,686.64 = 85,520,837.88/x
  3. Step 3: Cross multiply
    155,136,984.48x = 214,089,686.64 × 85,520,837.88
  4. Step 4: Simplify right side
    155,136,984.48x = 18,309,129,382,919,440
  5. Step 5: Solve for x
    x = 18,309,129,382,919,440/155,136,984.48
  6. Step 6: Final answer
    x = 118,019,113.52

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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.