Home / 157,440,979.40-236,205,705.90-76,664,582.60

Finding the Fourth Proportional to 157,440,979.40, 236,205,705.90 and 76,664,582.60

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Solution

The fourth proportional to 157,440,979.40, 236,205,705.90 and 76,664,582.60 is: 115,018,414.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    157,440,979.40 : 236,205,705.90 = 76,664,582.60 : x
  2. Step 2: Convert to fraction form
    157,440,979.40/236,205,705.90 = 76,664,582.60/x
  3. Step 3: Cross multiply
    157,440,979.40x = 236,205,705.90 × 76,664,582.60
  4. Step 4: Simplify right side
    157,440,979.40x = 18,108,611,850,561,856
  5. Step 5: Solve for x
    x = 18,108,611,850,561,856/157,440,979.40
  6. Step 6: Final answer
    x = 115,018,414.64

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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.