Home / 290,023,276.08-400,242,681-157,857,884.52

Finding the Fourth Proportional to 290,023,276.08, 400,242,681 and 157,857,884.52

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Solution

The fourth proportional to 290,023,276.08, 400,242,681 and 157,857,884.52 is: 217,849,628.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,023,276.08 : 400,242,681 = 157,857,884.52 : x
  2. Step 2: Convert to fraction form
    290,023,276.08/400,242,681 = 157,857,884.52/x
  3. Step 3: Cross multiply
    290,023,276.08x = 400,242,681 × 157,857,884.52
  4. Step 4: Simplify right side
    290,023,276.08x = 63,181,462,917,273,200
  5. Step 5: Solve for x
    x = 63,181,462,917,273,200/290,023,276.08
  6. Step 6: Final answer
    x = 217,849,628.39

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.