Home / 315,533,999.60-473,300,999.40-213,612,412.40

Finding the Fourth Proportional to 315,533,999.60, 473,300,999.40 and 213,612,412.40

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Solution

The fourth proportional to 315,533,999.60, 473,300,999.40 and 213,612,412.40 is: 320,418,618.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,533,999.60 : 473,300,999.40 = 213,612,412.40 : x
  2. Step 2: Convert to fraction form
    315,533,999.60/473,300,999.40 = 213,612,412.40/x
  3. Step 3: Cross multiply
    315,533,999.60x = 473,300,999.40 × 213,612,412.40
  4. Step 4: Simplify right side
    315,533,999.60x = 101,102,968,273,164,944
  5. Step 5: Solve for x
    x = 101,102,968,273,164,944/315,533,999.60
  6. Step 6: Final answer
    x = 320,418,618.60

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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.