Home / 128,094,805.77-176,638,714.20-109,571,269.32

Finding the Fourth Proportional to 128,094,805.77, 176,638,714.20 and 109,571,269.32

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Solution

The fourth proportional to 128,094,805.77, 176,638,714.20 and 109,571,269.32 is: 151,095,339.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,094,805.77 : 176,638,714.20 = 109,571,269.32 : x
  2. Step 2: Convert to fraction form
    128,094,805.77/176,638,714.20 = 109,571,269.32/x
  3. Step 3: Cross multiply
    128,094,805.77x = 176,638,714.20 × 109,571,269.32
  4. Step 4: Simplify right side
    128,094,805.77x = 19,354,528,125,946,704
  5. Step 5: Solve for x
    x = 19,354,528,125,946,704/128,094,805.77
  6. Step 6: Final answer
    x = 151,095,339.19

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.