Home / 187,605,171.51-258,895,161.21-103,978,701.18

Finding the Fourth Proportional to 187,605,171.51, 258,895,161.21 and 103,978,701.18

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Solution

The fourth proportional to 187,605,171.51, 258,895,161.21 and 103,978,701.18 is: 143,490,621.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,605,171.51 : 258,895,161.21 = 103,978,701.18 : x
  2. Step 2: Convert to fraction form
    187,605,171.51/258,895,161.21 = 103,978,701.18/x
  3. Step 3: Cross multiply
    187,605,171.51x = 258,895,161.21 × 103,978,701.18
  4. Step 4: Simplify right side
    187,605,171.51x = 26,919,582,604,402,520
  5. Step 5: Solve for x
    x = 26,919,582,604,402,520/187,605,171.51
  6. Step 6: Final answer
    x = 143,490,621.22

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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.