Home / 156,756,790.62-216,325,948.32-86,196,122.46

Finding the Fourth Proportional to 156,756,790.62, 216,325,948.32 and 86,196,122.46

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Solution

The fourth proportional to 156,756,790.62, 216,325,948.32 and 86,196,122.46 is: 118,951,516.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,756,790.62 : 216,325,948.32 = 86,196,122.46 : x
  2. Step 2: Convert to fraction form
    156,756,790.62/216,325,948.32 = 86,196,122.46/x
  3. Step 3: Cross multiply
    156,756,790.62x = 216,325,948.32 × 86,196,122.46
  4. Step 4: Simplify right side
    156,756,790.62x = 18,646,457,932,666,348
  5. Step 5: Solve for x
    x = 18,646,457,932,666,348/156,756,790.62
  6. Step 6: Final answer
    x = 118,951,516.29

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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.