Home / 115,901,945.60-173,852,918.40-69,985,443.20

Finding the Fourth Proportional to 115,901,945.60, 173,852,918.40 and 69,985,443.20

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Solution

The fourth proportional to 115,901,945.60, 173,852,918.40 and 69,985,443.20 is: 104,978,164.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,901,945.60 : 173,852,918.40 = 69,985,443.20 : x
  2. Step 2: Convert to fraction form
    115,901,945.60/173,852,918.40 = 69,985,443.20/x
  3. Step 3: Cross multiply
    115,901,945.60x = 173,852,918.40 × 69,985,443.20
  4. Step 4: Simplify right side
    115,901,945.60x = 12,167,173,545,837,436
  5. Step 5: Solve for x
    x = 12,167,173,545,837,436/115,901,945.60
  6. Step 6: Final answer
    x = 104,978,164.80

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.