Home / 116,725,860.32-160,998,146.96-81,926,316.32

Finding the Fourth Proportional to 116,725,860.32, 160,998,146.96 and 81,926,316.32

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Solution

The fourth proportional to 116,725,860.32, 160,998,146.96 and 81,926,316.32 is: 112,999,682.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,725,860.32 : 160,998,146.96 = 81,926,316.32 : x
  2. Step 2: Convert to fraction form
    116,725,860.32/160,998,146.96 = 81,926,316.32/x
  3. Step 3: Cross multiply
    116,725,860.32x = 160,998,146.96 × 81,926,316.32
  4. Step 4: Simplify right side
    116,725,860.32x = 13,189,985,114,778,806
  5. Step 5: Solve for x
    x = 13,189,985,114,778,806/116,725,860.32
  6. Step 6: Final answer
    x = 112,999,682.15

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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.