Home / 10,279,431.80-14,185,632.55-5,632,478.40

Finding the Fourth Proportional to 10,279,431.80, 14,185,632.55 and 5,632,478.40

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Solution

The fourth proportional to 10,279,431.80, 14,185,632.55 and 5,632,478.40 is: 7,772,829.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,279,431.80 : 14,185,632.55 = 5,632,478.40 : x
  2. Step 2: Convert to fraction form
    10,279,431.80/14,185,632.55 = 5,632,478.40/x
  3. Step 3: Cross multiply
    10,279,431.80x = 14,185,632.55 × 5,632,478.40
  4. Step 4: Simplify right side
    10,279,431.80x = 79,900,268,928,211.92
  5. Step 5: Solve for x
    x = 79,900,268,928,211.92/10,279,431.80
  6. Step 6: Final answer
    x = 7,772,829.33

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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.