Home / 814,168,259.18-1,221,768,912.51-347,833,191.37

Finding the Fourth Proportional to 814,168,259.18, 1,221,768,912.51 and 347,833,191.37

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Solution

The fourth proportional to 814,168,259.18, 1,221,768,912.51 and 347,833,191.37 is: 521,970,459.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,168,259.18 : 1,221,768,912.51 = 347,833,191.37 : x
  2. Step 2: Convert to fraction form
    814,168,259.18/1,221,768,912.51 = 347,833,191.37/x
  3. Step 3: Cross multiply
    814,168,259.18x = 1,221,768,912.51 × 347,833,191.37
  4. Step 4: Simplify right side
    814,168,259.18x = 424,971,779,952,052,672
  5. Step 5: Solve for x
    x = 424,971,779,952,052,672/814,168,259.18
  6. Step 6: Final answer
    x = 521,970,459.01

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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.