Home / 661,886,899.23-913,374,450.27-379,426,838.79

Finding the Fourth Proportional to 661,886,899.23, 913,374,450.27 and 379,426,838.79

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Solution

The fourth proportional to 661,886,899.23, 913,374,450.27 and 379,426,838.79 is: 523,592,143.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    661,886,899.23 : 913,374,450.27 = 379,426,838.79 : x
  2. Step 2: Convert to fraction form
    661,886,899.23/913,374,450.27 = 379,426,838.79/x
  3. Step 3: Cross multiply
    661,886,899.23x = 913,374,450.27 × 379,426,838.79
  4. Step 4: Simplify right side
    661,886,899.23x = 346,558,780,297,500,160
  5. Step 5: Solve for x
    x = 346,558,780,297,500,160/661,886,899.23
  6. Step 6: Final answer
    x = 523,592,143.46

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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.