Home / 81,154,543.28-121,444,459.86-50,463,575.24

Finding the Fourth Proportional to 81,154,543.28, 121,444,459.86 and 50,463,575.24

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Solution

The fourth proportional to 81,154,543.28, 121,444,459.86 and 50,463,575.24 is: 75,516,679.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,154,543.28 : 121,444,459.86 = 50,463,575.24 : x
  2. Step 2: Convert to fraction form
    81,154,543.28/121,444,459.86 = 50,463,575.24/x
  3. Step 3: Cross multiply
    81,154,543.28x = 121,444,459.86 × 50,463,575.24
  4. Step 4: Simplify right side
    81,154,543.28x = 6,128,521,637,626,270
  5. Step 5: Solve for x
    x = 6,128,521,637,626,270/81,154,543.28
  6. Step 6: Final answer
    x = 75,516,679.53

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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.