Home / 484,804,986,010.80-668,919,916,202.70-289,450,316,412.35

Finding the Fourth Proportional to 484,804,986,010.80, 668,919,916,202.70 and 289,450,316,412.35

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Solution

The fourth proportional to 484,804,986,010.80, 668,919,916,202.70 and 289,450,316,412.35 is: 399,375,185,871.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,804,986,010.80 : 668,919,916,202.70 = 289,450,316,412.35 : x
  2. Step 2: Convert to fraction form
    484,804,986,010.80/668,919,916,202.70 = 289,450,316,412.35/x
  3. Step 3: Cross multiply
    484,804,986,010.80x = 668,919,916,202.70 × 289,450,316,412.35
  4. Step 4: Simplify right side
    484,804,986,010.80x = 193,619,081,399,394,138,849,280
  5. Step 5: Solve for x
    x = 193,619,081,399,394,138,849,280/484,804,986,010.80
  6. Step 6: Final answer
    x = 399,375,185,871.30

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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.