Home / 643,808,312.06-888,404,816.21-365,349,834.68

Finding the Fourth Proportional to 643,808,312.06, 888,404,816.21 and 365,349,834.68

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Solution

The fourth proportional to 643,808,312.06, 888,404,816.21 and 365,349,834.68 is: 504,154,026.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,808,312.06 : 888,404,816.21 = 365,349,834.68 : x
  2. Step 2: Convert to fraction form
    643,808,312.06/888,404,816.21 = 365,349,834.68/x
  3. Step 3: Cross multiply
    643,808,312.06x = 888,404,816.21 × 365,349,834.68
  4. Step 4: Simplify right side
    643,808,312.06x = 324,578,552,724,970,560
  5. Step 5: Solve for x
    x = 324,578,552,724,970,560/643,808,312.06
  6. Step 6: Final answer
    x = 504,154,026.36

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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.