Home / 128,824,731,826.80-193,172,446,946.11-75,059,242,776.51

Finding the Fourth Proportional to 128,824,731,826.80, 193,172,446,946.11 and 75,059,242,776.51

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Solution

The fourth proportional to 128,824,731,826.80, 193,172,446,946.11 and 75,059,242,776.51 is: 112,551,195,624.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,824,731,826.80 : 193,172,446,946.11 = 75,059,242,776.51 : x
  2. Step 2: Convert to fraction form
    128,824,731,826.80/193,172,446,946.11 = 75,059,242,776.51/x
  3. Step 3: Cross multiply
    128,824,731,826.80x = 193,172,446,946.11 × 75,059,242,776.51
  4. Step 4: Simplify right side
    128,824,731,826.80x = 14,499,377,593,060,566,237,184
  5. Step 5: Solve for x
    x = 14,499,377,593,060,566,237,184/128,824,731,826.80
  6. Step 6: Final answer
    x = 112,551,195,624.10

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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.