Home / 38,540,988.47-53,189,927.66-21,140,696.70

Finding the Fourth Proportional to 38,540,988.47, 53,189,927.66 and 21,140,696.70

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Solution

The fourth proportional to 38,540,988.47, 53,189,927.66 and 21,140,696.70 is: 29,176,006.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,540,988.47 : 53,189,927.66 = 21,140,696.70 : x
  2. Step 2: Convert to fraction form
    38,540,988.47/53,189,927.66 = 21,140,696.70/x
  3. Step 3: Cross multiply
    38,540,988.47x = 53,189,927.66 × 21,140,696.70
  4. Step 4: Simplify right side
    38,540,988.47x = 1,124,472,128,207,852.50
  5. Step 5: Solve for x
    x = 1,124,472,128,207,852.50/38,540,988.47
  6. Step 6: Final answer
    x = 29,176,006.45

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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.