Home / 56,979,703.64-78,632,264.75-30,874,214.55

Finding the Fourth Proportional to 56,979,703.64, 78,632,264.75 and 30,874,214.55

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Solution

The fourth proportional to 56,979,703.64, 78,632,264.75 and 30,874,214.55 is: 42,606,564.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,979,703.64 : 78,632,264.75 = 30,874,214.55 : x
  2. Step 2: Convert to fraction form
    56,979,703.64/78,632,264.75 = 30,874,214.55/x
  3. Step 3: Cross multiply
    56,979,703.64x = 78,632,264.75 × 30,874,214.55
  4. Step 4: Simplify right side
    56,979,703.64x = 2,427,709,412,289,531
  5. Step 5: Solve for x
    x = 2,427,709,412,289,531/56,979,703.64
  6. Step 6: Final answer
    x = 42,606,564.40

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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.