Home / 319,308,003.70-478,962,005.55-147,121,119.70

Finding the Fourth Proportional to 319,308,003.70, 478,962,005.55 and 147,121,119.70

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Solution

The fourth proportional to 319,308,003.70, 478,962,005.55 and 147,121,119.70 is: 220,681,679.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,308,003.70 : 478,962,005.55 = 147,121,119.70 : x
  2. Step 2: Convert to fraction form
    319,308,003.70/478,962,005.55 = 147,121,119.70/x
  3. Step 3: Cross multiply
    319,308,003.70x = 478,962,005.55 × 147,121,119.70
  4. Step 4: Simplify right side
    319,308,003.70x = 70,465,426,550,273,608
  5. Step 5: Solve for x
    x = 70,465,426,550,273,608/319,308,003.70
  6. Step 6: Final answer
    x = 220,681,679.55

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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.