Home / 56,718,827.52-78,272,225.28-30,965,268.48

Finding the Fourth Proportional to 56,718,827.52, 78,272,225.28 and 30,965,268.48

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Solution

The fourth proportional to 56,718,827.52, 78,272,225.28 and 30,965,268.48 is: 42,732,203.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,718,827.52 : 78,272,225.28 = 30,965,268.48 : x
  2. Step 2: Convert to fraction form
    56,718,827.52/78,272,225.28 = 30,965,268.48/x
  3. Step 3: Cross multiply
    56,718,827.52x = 78,272,225.28 × 30,965,268.48
  4. Step 4: Simplify right side
    56,718,827.52x = 2,423,720,470,322,243
  5. Step 5: Solve for x
    x = 2,423,720,470,322,243/56,718,827.52
  6. Step 6: Final answer
    x = 42,732,203.33

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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.