Home / 664,868,989.98-917,610,348.96-382,605,628.32

Finding the Fourth Proportional to 664,868,989.98, 917,610,348.96 and 382,605,628.32

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Solution

The fourth proportional to 664,868,989.98, 917,610,348.96 and 382,605,628.32 is: 528,048,216.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,868,989.98 : 917,610,348.96 = 382,605,628.32 : x
  2. Step 2: Convert to fraction form
    664,868,989.98/917,610,348.96 = 382,605,628.32/x
  3. Step 3: Cross multiply
    664,868,989.98x = 917,610,348.96 × 382,605,628.32
  4. Step 4: Simplify right side
    664,868,989.98x = 351,082,884,116,775,296
  5. Step 5: Solve for x
    x = 351,082,884,116,775,296/664,868,989.98
  6. Step 6: Final answer
    x = 528,048,216.13

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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.