Home / 739,640,762.77-1,020,704,802.91-400,551,870.45

Finding the Fourth Proportional to 739,640,762.77, 1,020,704,802.91 and 400,551,870.45

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Solution

The fourth proportional to 739,640,762.77, 1,020,704,802.91 and 400,551,870.45 is: 552,761,879.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    739,640,762.77 : 1,020,704,802.91 = 400,551,870.45 : x
  2. Step 2: Convert to fraction form
    739,640,762.77/1,020,704,802.91 = 400,551,870.45/x
  3. Step 3: Cross multiply
    739,640,762.77x = 1,020,704,802.91 × 400,551,870.45
  4. Step 4: Simplify right side
    739,640,762.77x = 408,845,217,982,899,072
  5. Step 5: Solve for x
    x = 408,845,217,982,899,072/739,640,762.77
  6. Step 6: Final answer
    x = 552,761,879.23

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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.