Home / 245,014,858.40-367,415,999.40-81,189,312.80

Finding the Fourth Proportional to 245,014,858.40, 367,415,999.40 and 81,189,312.80

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Solution

The fourth proportional to 245,014,858.40, 367,415,999.40 and 81,189,312.80 is: 121,748,749.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,014,858.40 : 367,415,999.40 = 81,189,312.80 : x
  2. Step 2: Convert to fraction form
    245,014,858.40/367,415,999.40 = 81,189,312.80/x
  3. Step 3: Cross multiply
    245,014,858.40x = 367,415,999.40 × 81,189,312.80
  4. Step 4: Simplify right side
    245,014,858.40x = 29,830,252,503,011,208
  5. Step 5: Solve for x
    x = 29,830,252,503,011,208/245,014,858.40
  6. Step 6: Final answer
    x = 121,748,749.03

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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.