Home / 438,501,087.36-657,536,397.16-216,916,409.52

Finding the Fourth Proportional to 438,501,087.36, 657,536,397.16 and 216,916,409.52

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Solution

The fourth proportional to 438,501,087.36, 657,536,397.16 and 216,916,409.52 is: 325,268,143.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,501,087.36 : 657,536,397.16 = 216,916,409.52 : x
  2. Step 2: Convert to fraction form
    438,501,087.36/657,536,397.16 = 216,916,409.52/x
  3. Step 3: Cross multiply
    438,501,087.36x = 657,536,397.16 × 216,916,409.52
  4. Step 4: Simplify right side
    438,501,087.36x = 142,630,434,400,663,920
  5. Step 5: Solve for x
    x = 142,630,434,400,663,920/438,501,087.36
  6. Step 6: Final answer
    x = 325,268,143.03

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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.