Home / 72,788,851.19-100,461,589.13-43,018,283.62

Finding the Fourth Proportional to 72,788,851.19, 100,461,589.13 and 43,018,283.62

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Solution

The fourth proportional to 72,788,851.19, 100,461,589.13 and 43,018,283.62 is: 59,372,899.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,788,851.19 : 100,461,589.13 = 43,018,283.62 : x
  2. Step 2: Convert to fraction form
    72,788,851.19/100,461,589.13 = 43,018,283.62/x
  3. Step 3: Cross multiply
    72,788,851.19x = 100,461,589.13 × 43,018,283.62
  4. Step 4: Simplify right side
    72,788,851.19x = 4,321,685,134,343,372
  5. Step 5: Solve for x
    x = 4,321,685,134,343,372/72,788,851.19
  6. Step 6: Final answer
    x = 59,372,899.33

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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.