Home / 112,185,323.40-168,277,985.10-73,890,078.60

Finding the Fourth Proportional to 112,185,323.40, 168,277,985.10 and 73,890,078.60

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Solution

The fourth proportional to 112,185,323.40, 168,277,985.10 and 73,890,078.60 is: 110,835,117.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,185,323.40 : 168,277,985.10 = 73,890,078.60 : x
  2. Step 2: Convert to fraction form
    112,185,323.40/168,277,985.10 = 73,890,078.60/x
  3. Step 3: Cross multiply
    112,185,323.40x = 168,277,985.10 × 73,890,078.60
  4. Step 4: Simplify right side
    112,185,323.40x = 12,434,073,545,688,628
  5. Step 5: Solve for x
    x = 12,434,073,545,688,628/112,185,323.40
  6. Step 6: Final answer
    x = 110,835,117.90

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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.