Home / 28,012,516.12-38,657,272.32-15,135,460.12

Finding the Fourth Proportional to 28,012,516.12, 38,657,272.32 and 15,135,460.12

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Solution

The fourth proportional to 28,012,516.12, 38,657,272.32 and 15,135,460.12 is: 20,886,935.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,012,516.12 : 38,657,272.32 = 15,135,460.12 : x
  2. Step 2: Convert to fraction form
    28,012,516.12/38,657,272.32 = 15,135,460.12/x
  3. Step 3: Cross multiply
    28,012,516.12x = 38,657,272.32 × 15,135,460.12
  4. Step 4: Simplify right side
    28,012,516.12x = 585,095,603,547,339.88
  5. Step 5: Solve for x
    x = 585,095,603,547,339.88/28,012,516.12
  6. Step 6: Final answer
    x = 20,886,935.01

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1.5x scale

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.