Home / 319,305,629.80-478,958,444.70-89,274,345.40

Finding the Fourth Proportional to 319,305,629.80, 478,958,444.70 and 89,274,345.40

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Solution

The fourth proportional to 319,305,629.80, 478,958,444.70 and 89,274,345.40 is: 133,911,518.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,305,629.80 : 478,958,444.70 = 89,274,345.40 : x
  2. Step 2: Convert to fraction form
    319,305,629.80/478,958,444.70 = 89,274,345.40/x
  3. Step 3: Cross multiply
    319,305,629.80x = 478,958,444.70 × 89,274,345.40
  4. Step 4: Simplify right side
    319,305,629.80x = 42,758,701,624,394,600
  5. Step 5: Solve for x
    x = 42,758,701,624,394,600/319,305,629.80
  6. Step 6: Final answer
    x = 133,911,518.10

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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.