Home / 315,575,999.70-473,363,999.55-186,245,567.70

Finding the Fourth Proportional to 315,575,999.70, 473,363,999.55 and 186,245,567.70

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Solution

The fourth proportional to 315,575,999.70, 473,363,999.55 and 186,245,567.70 is: 279,368,351.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,575,999.70 : 473,363,999.55 = 186,245,567.70 : x
  2. Step 2: Convert to fraction form
    315,575,999.70/473,363,999.55 = 186,245,567.70/x
  3. Step 3: Cross multiply
    315,575,999.70x = 473,363,999.55 × 186,245,567.70
  4. Step 4: Simplify right side
    315,575,999.70x = 88,161,946,824,932,288
  5. Step 5: Solve for x
    x = 88,161,946,824,932,288/315,575,999.70
  6. Step 6: Final answer
    x = 279,368,351.55

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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.