Home / 129,636,442.67-178,887,476.13-73,118,074.05

Finding the Fourth Proportional to 129,636,442.67, 178,887,476.13 and 73,118,074.05

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Solution

The fourth proportional to 129,636,442.67, 178,887,476.13 and 73,118,074.05 is: 100,896,842.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,636,442.67 : 178,887,476.13 = 73,118,074.05 : x
  2. Step 2: Convert to fraction form
    129,636,442.67/178,887,476.13 = 73,118,074.05/x
  3. Step 3: Cross multiply
    129,636,442.67x = 178,887,476.13 × 73,118,074.05
  4. Step 4: Simplify right side
    129,636,442.67x = 13,079,907,725,579,306
  5. Step 5: Solve for x
    x = 13,079,907,725,579,306/129,636,442.67
  6. Step 6: Final answer
    x = 100,896,842.41

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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.