Home / 407,084,913.69-561,776,755.73-221,445,486.51

Finding the Fourth Proportional to 407,084,913.69, 561,776,755.73 and 221,445,486.51

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Solution

The fourth proportional to 407,084,913.69, 561,776,755.73 and 221,445,486.51 is: 305,594,540.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,084,913.69 : 561,776,755.73 = 221,445,486.51 : x
  2. Step 2: Convert to fraction form
    407,084,913.69/561,776,755.73 = 221,445,486.51/x
  3. Step 3: Cross multiply
    407,084,913.69x = 561,776,755.73 × 221,445,486.51
  4. Step 4: Simplify right side
    407,084,913.69x = 124,402,926,982,639,280
  5. Step 5: Solve for x
    x = 124,402,926,982,639,280/407,084,913.69
  6. Step 6: Final answer
    x = 305,594,540.10

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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.