Home / 866,641,732.36-1,195,967,908.74-470,164,721.92

Finding the Fourth Proportional to 866,641,732.36, 1,195,967,908.74 and 470,164,721.92

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Solution

The fourth proportional to 866,641,732.36, 1,195,967,908.74 and 470,164,721.92 is: 648,828,573.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    866,641,732.36 : 1,195,967,908.74 = 470,164,721.92 : x
  2. Step 2: Convert to fraction form
    866,641,732.36/1,195,967,908.74 = 470,164,721.92/x
  3. Step 3: Cross multiply
    866,641,732.36x = 1,195,967,908.74 × 470,164,721.92
  4. Step 4: Simplify right side
    866,641,732.36x = 562,301,919,237,986,048
  5. Step 5: Solve for x
    x = 562,301,919,237,986,048/866,641,732.36
  6. Step 6: Final answer
    x = 648,828,573.84

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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.