Home / 648,262,809.03-893,713,620.61-409,989,235.58

Finding the Fourth Proportional to 648,262,809.03, 893,713,620.61 and 409,989,235.58

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Solution

The fourth proportional to 648,262,809.03, 893,713,620.61 and 409,989,235.58 is: 565,222,868.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,262,809.03 : 893,713,620.61 = 409,989,235.58 : x
  2. Step 2: Convert to fraction form
    648,262,809.03/893,713,620.61 = 409,989,235.58/x
  3. Step 3: Cross multiply
    648,262,809.03x = 893,713,620.61 × 409,989,235.58
  4. Step 4: Simplify right side
    648,262,809.03x = 366,412,964,137,371,968
  5. Step 5: Solve for x
    x = 366,412,964,137,371,968/648,262,809.03
  6. Step 6: Final answer
    x = 565,222,868.00

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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.