Home / 422,121,807-633,108,242.70-163,124,101.08

Finding the Fourth Proportional to 422,121,807, 633,108,242.70 and 163,124,101.08

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Solution

The fourth proportional to 422,121,807, 633,108,242.70 and 163,124,101.08 is: 244,657,374.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,121,807 : 633,108,242.70 = 163,124,101.08 : x
  2. Step 2: Convert to fraction form
    422,121,807/633,108,242.70 = 163,124,101.08/x
  3. Step 3: Cross multiply
    422,121,807x = 633,108,242.70 × 163,124,101.08
  4. Step 4: Simplify right side
    422,121,807x = 103,275,212,976,775,984
  5. Step 5: Solve for x
    x = 103,275,212,976,775,984/422,121,807
  6. Step 6: Final answer
    x = 244,657,374.40

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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.