Home / 207,904,943.63-286,862,953.91-123,089,947.89

Finding the Fourth Proportional to 207,904,943.63, 286,862,953.91 and 123,089,947.89

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Solution

The fourth proportional to 207,904,943.63, 286,862,953.91 and 123,089,947.89 is: 169,836,971.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,904,943.63 : 286,862,953.91 = 123,089,947.89 : x
  2. Step 2: Convert to fraction form
    207,904,943.63/286,862,953.91 = 123,089,947.89/x
  3. Step 3: Cross multiply
    207,904,943.63x = 286,862,953.91 × 123,089,947.89
  4. Step 4: Simplify right side
    207,904,943.63x = 35,309,946,047,737,920
  5. Step 5: Solve for x
    x = 35,309,946,047,737,920/207,904,943.63
  6. Step 6: Final answer
    x = 169,836,971.80

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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.