Home / 7,640,378.60-10,543,798.54-4,155,798.45

Finding the Fourth Proportional to 7,640,378.60, 10,543,798.54 and 4,155,798.45

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Solution

The fourth proportional to 7,640,378.60, 10,543,798.54 and 4,155,798.45 is: 5,735,043.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,640,378.60 : 10,543,798.54 = 4,155,798.45 : x
  2. Step 2: Convert to fraction form
    7,640,378.60/10,543,798.54 = 4,155,798.45/x
  3. Step 3: Cross multiply
    7,640,378.60x = 10,543,798.54 × 4,155,798.45
  4. Step 4: Simplify right side
    7,640,378.60x = 43,817,901,579,571.91
  5. Step 5: Solve for x
    x = 43,817,901,579,571.91/7,640,378.60
  6. Step 6: Final answer
    x = 5,735,043.23

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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.