Home / 258,075,361,728.81-387,047,013,368.86-76,515,739,335.56

Finding the Fourth Proportional to 258,075,361,728.81, 387,047,013,368.86 and 76,515,739,335.56

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Solution

The fourth proportional to 258,075,361,728.81, 387,047,013,368.86 and 76,515,739,335.56 is: 114,754,032,260.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,075,361,728.81 : 387,047,013,368.86 = 76,515,739,335.56 : x
  2. Step 2: Convert to fraction form
    258,075,361,728.81/387,047,013,368.86 = 76,515,739,335.56/x
  3. Step 3: Cross multiply
    258,075,361,728.81x = 387,047,013,368.86 × 76,515,739,335.56
  4. Step 4: Simplify right side
    258,075,361,728.81x = 29,615,188,385,539,469,344,768
  5. Step 5: Solve for x
    x = 29,615,188,385,539,469,344,768/258,075,361,728.81
  6. Step 6: Final answer
    x = 114,754,032,260.78

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.