Home / 56,918,806.92-78,547,979.83-30,813,324.75

Finding the Fourth Proportional to 56,918,806.92, 78,547,979.83 and 30,813,324.75

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Solution

The fourth proportional to 56,918,806.92, 78,547,979.83 and 30,813,324.75 is: 42,522,402.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,918,806.92 : 78,547,979.83 = 30,813,324.75 : x
  2. Step 2: Convert to fraction form
    56,918,806.92/78,547,979.83 = 30,813,324.75/x
  3. Step 3: Cross multiply
    56,918,806.92x = 78,547,979.83 × 30,813,324.75
  4. Step 4: Simplify right side
    56,918,806.92x = 2,420,324,410,881,206.50
  5. Step 5: Solve for x
    x = 2,420,324,410,881,206.50/56,918,806.92
  6. Step 6: Final answer
    x = 42,522,402.38

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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.