Home / 112,963,010.40-169,444,515.60-78,525,633.60

Finding the Fourth Proportional to 112,963,010.40, 169,444,515.60 and 78,525,633.60

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Solution

The fourth proportional to 112,963,010.40, 169,444,515.60 and 78,525,633.60 is: 117,788,450.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,963,010.40 : 169,444,515.60 = 78,525,633.60 : x
  2. Step 2: Convert to fraction form
    112,963,010.40/169,444,515.60 = 78,525,633.60/x
  3. Step 3: Cross multiply
    112,963,010.40x = 169,444,515.60 × 78,525,633.60
  4. Step 4: Simplify right side
    112,963,010.40x = 13,305,737,947,535,082
  5. Step 5: Solve for x
    x = 13,305,737,947,535,082/112,963,010.40
  6. Step 6: Final answer
    x = 117,788,450.40

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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.