Home / 72,548,382-100,112,229.60-39,953,334

Finding the Fourth Proportional to 72,548,382, 100,112,229.60 and 39,953,334

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Solution

The fourth proportional to 72,548,382, 100,112,229.60 and 39,953,334 is: 55,133,102.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,548,382 : 100,112,229.60 = 39,953,334 : x
  2. Step 2: Convert to fraction form
    72,548,382/100,112,229.60 = 39,953,334/x
  3. Step 3: Cross multiply
    72,548,382x = 100,112,229.60 × 39,953,334
  4. Step 4: Simplify right side
    72,548,382x = 3,999,817,346,693,486
  5. Step 5: Solve for x
    x = 3,999,817,346,693,486/72,548,382
  6. Step 6: Final answer
    x = 55,133,102.03

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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.