Home / 115,982,004.80-173,973,007.20-77,761,409.60

Finding the Fourth Proportional to 115,982,004.80, 173,973,007.20 and 77,761,409.60

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Solution

The fourth proportional to 115,982,004.80, 173,973,007.20 and 77,761,409.60 is: 116,642,114.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,982,004.80 : 173,973,007.20 = 77,761,409.60 : x
  2. Step 2: Convert to fraction form
    115,982,004.80/173,973,007.20 = 77,761,409.60/x
  3. Step 3: Cross multiply
    115,982,004.80x = 173,973,007.20 × 77,761,409.60
  4. Step 4: Simplify right side
    115,982,004.80x = 13,528,386,272,222,948
  5. Step 5: Solve for x
    x = 13,528,386,272,222,948/115,982,004.80
  6. Step 6: Final answer
    x = 116,642,114.40

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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.