Home / 112,095,164.40-168,142,746.60-81,484,162.80

Finding the Fourth Proportional to 112,095,164.40, 168,142,746.60 and 81,484,162.80

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Solution

The fourth proportional to 112,095,164.40, 168,142,746.60 and 81,484,162.80 is: 122,226,244.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,095,164.40 : 168,142,746.60 = 81,484,162.80 : x
  2. Step 2: Convert to fraction form
    112,095,164.40/168,142,746.60 = 81,484,162.80/x
  3. Step 3: Cross multiply
    112,095,164.40x = 168,142,746.60 × 81,484,162.80
  4. Step 4: Simplify right side
    112,095,164.40x = 13,700,970,937,593,546
  5. Step 5: Solve for x
    x = 13,700,970,937,593,546/112,095,164.40
  6. Step 6: Final answer
    x = 122,226,244.20

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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.