Home / 643,808,315.06-888,404,820.34-365,349,837.68

Finding the Fourth Proportional to 643,808,315.06, 888,404,820.34 and 365,349,837.68

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Solution

The fourth proportional to 643,808,315.06, 888,404,820.34 and 365,349,837.68 is: 504,154,030.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,808,315.06 : 888,404,820.34 = 365,349,837.68 : x
  2. Step 2: Convert to fraction form
    643,808,315.06/888,404,820.34 = 365,349,837.68/x
  3. Step 3: Cross multiply
    643,808,315.06x = 888,404,820.34 × 365,349,837.68
  4. Step 4: Simplify right side
    643,808,315.06x = 324,578,556,905,348,608
  5. Step 5: Solve for x
    x = 324,578,556,905,348,608/643,808,315.06
  6. Step 6: Final answer
    x = 504,154,030.50

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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.