Home / 258,980,582.48-388,470,870.84-143,910,090.32

Finding the Fourth Proportional to 258,980,582.48, 388,470,870.84 and 143,910,090.32

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Solution

The fourth proportional to 258,980,582.48, 388,470,870.84 and 143,910,090.32 is: 215,865,133.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,980,582.48 : 388,470,870.84 = 143,910,090.32 : x
  2. Step 2: Convert to fraction form
    258,980,582.48/388,470,870.84 = 143,910,090.32/x
  3. Step 3: Cross multiply
    258,980,582.48x = 388,470,870.84 × 143,910,090.32
  4. Step 4: Simplify right side
    258,980,582.48x = 55,904,878,109,273,448
  5. Step 5: Solve for x
    x = 55,904,878,109,273,448/258,980,582.48
  6. Step 6: Final answer
    x = 215,865,133.88

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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.