Home / 56,917,927.91-78,546,723.95-30,812,426.57

Finding the Fourth Proportional to 56,917,927.91, 78,546,723.95 and 30,812,426.57

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Solution

The fourth proportional to 56,917,927.91, 78,546,723.95 and 30,812,426.57 is: 42,521,139.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,917,927.91 : 78,546,723.95 = 30,812,426.57 : x
  2. Step 2: Convert to fraction form
    56,917,927.91/78,546,723.95 = 30,812,426.57/x
  3. Step 3: Cross multiply
    56,917,927.91x = 78,546,723.95 × 30,812,426.57
  4. Step 4: Simplify right side
    56,917,927.91x = 2,420,215,163,707,733
  5. Step 5: Solve for x
    x = 2,420,215,163,707,733/56,917,927.91
  6. Step 6: Final answer
    x = 42,521,139.70

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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.