Home / 405,985,852.76-560,265,851.58-220,349,093.72

Finding the Fourth Proportional to 405,985,852.76, 560,265,851.58 and 220,349,093.72

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Solution

The fourth proportional to 405,985,852.76, 560,265,851.58 and 220,349,093.72 is: 304,084,666.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    405,985,852.76 : 560,265,851.58 = 220,349,093.72 : x
  2. Step 2: Convert to fraction form
    405,985,852.76/560,265,851.58 = 220,349,093.72/x
  3. Step 3: Cross multiply
    405,985,852.76x = 560,265,851.58 × 220,349,093.72
  4. Step 4: Simplify right side
    405,985,852.76x = 123,454,072,637,917,040
  5. Step 5: Solve for x
    x = 123,454,072,637,917,040/405,985,852.76
  6. Step 6: Final answer
    x = 304,084,666.49

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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.