Home / 319,064,421.75-440,308,031.73-177,935,795.43

Finding the Fourth Proportional to 319,064,421.75, 440,308,031.73 and 177,935,795.43

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Solution

The fourth proportional to 319,064,421.75, 440,308,031.73 and 177,935,795.43 is: 245,550,912.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,064,421.75 : 440,308,031.73 = 177,935,795.43 : x
  2. Step 2: Convert to fraction form
    319,064,421.75/440,308,031.73 = 177,935,795.43/x
  3. Step 3: Cross multiply
    319,064,421.75x = 440,308,031.73 × 177,935,795.43
  4. Step 4: Simplify right side
    319,064,421.75x = 78,346,559,860,095,232
  5. Step 5: Solve for x
    x = 78,346,559,860,095,232/319,064,421.75
  6. Step 6: Final answer
    x = 245,550,912.35

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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.