Home / 187,605,151.60-258,895,133.76-103,978,681.29

Finding the Fourth Proportional to 187,605,151.60, 258,895,133.76 and 103,978,681.29

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Solution

The fourth proportional to 187,605,151.60, 258,895,133.76 and 103,978,681.29 is: 143,490,593.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,605,151.60 : 258,895,133.76 = 103,978,681.29 : x
  2. Step 2: Convert to fraction form
    187,605,151.60/258,895,133.76 = 103,978,681.29/x
  3. Step 3: Cross multiply
    187,605,151.60x = 258,895,133.76 × 103,978,681.29
  4. Step 4: Simplify right side
    187,605,151.60x = 26,919,574,600,373,040
  5. Step 5: Solve for x
    x = 26,919,574,600,373,040/187,605,151.60
  6. Step 6: Final answer
    x = 143,490,593.78

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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.