Home / 258,980,581.48-388,470,869.34-143,910,089.32

Finding the Fourth Proportional to 258,980,581.48, 388,470,869.34 and 143,910,089.32

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Solution

The fourth proportional to 258,980,581.48, 388,470,869.34 and 143,910,089.32 is: 215,865,132.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,980,581.48 : 388,470,869.34 = 143,910,089.32 : x
  2. Step 2: Convert to fraction form
    258,980,581.48/388,470,869.34 = 143,910,089.32/x
  3. Step 3: Cross multiply
    258,980,581.48x = 388,470,869.34 × 143,910,089.32
  4. Step 4: Simplify right side
    258,980,581.48x = 55,904,877,504,937,440
  5. Step 5: Solve for x
    x = 55,904,877,504,937,440/258,980,581.48
  6. Step 6: Final answer
    x = 215,865,132.38

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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.