Home / 691,724,430.10-954,578,595.08-378,459,906.58

Finding the Fourth Proportional to 691,724,430.10, 954,578,595.08 and 378,459,906.58

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Solution

The fourth proportional to 691,724,430.10, 954,578,595.08 and 378,459,906.58 is: 522,274,059.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,724,430.10 : 954,578,595.08 = 378,459,906.58 : x
  2. Step 2: Convert to fraction form
    691,724,430.10/954,578,595.08 = 378,459,906.58/x
  3. Step 3: Cross multiply
    691,724,430.10x = 954,578,595.08 × 378,459,906.58
  4. Step 4: Simplify right side
    691,724,430.10x = 361,269,725,917,244,416
  5. Step 5: Solve for x
    x = 361,269,725,917,244,416/691,724,430.10
  6. Step 6: Final answer
    x = 522,274,059.14

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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.