Home / 31,076,835,696.65-42,886,591,802.76-18,225,744,468.59

Finding the Fourth Proportional to 31,076,835,696.65, 42,886,591,802.76 and 18,225,744,468.59

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Solution

The fourth proportional to 31,076,835,696.65, 42,886,591,802.76 and 18,225,744,468.59 is: 25,151,854,936.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,076,835,696.65 : 42,886,591,802.76 = 18,225,744,468.59 : x
  2. Step 2: Convert to fraction form
    31,076,835,696.65/42,886,591,802.76 = 18,225,744,468.59/x
  3. Step 3: Cross multiply
    31,076,835,696.65x = 42,886,591,802.76 × 18,225,744,468.59
  4. Step 4: Simplify right side
    31,076,835,696.65x = 781,640,063,325,830,381,568
  5. Step 5: Solve for x
    x = 781,640,063,325,830,381,568/31,076,835,696.65
  6. Step 6: Final answer
    x = 25,151,854,936.44

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1.5x scale

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.