Home / 56,979,182.83-78,631,341.81-30,873,680.08

Finding the Fourth Proportional to 56,979,182.83, 78,631,341.81 and 30,873,680.08

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Solution

The fourth proportional to 56,979,182.83, 78,631,341.81 and 30,873,680.08 is: 42,605,716.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,979,182.83 : 78,631,341.81 = 30,873,680.08 : x
  2. Step 2: Convert to fraction form
    56,979,182.83/78,631,341.81 = 30,873,680.08/x
  3. Step 3: Cross multiply
    56,979,182.83x = 78,631,341.81 × 30,873,680.08
  4. Step 4: Simplify right side
    56,979,182.83x = 2,427,638,890,755,543
  5. Step 5: Solve for x
    x = 2,427,638,890,755,543/56,979,182.83
  6. Step 6: Final answer
    x = 42,605,716.16

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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.