Home / 20,124,007.80-30,186,011.70-15,085,159.80

Finding the Fourth Proportional to 20,124,007.80, 30,186,011.70 and 15,085,159.80

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Solution

The fourth proportional to 20,124,007.80, 30,186,011.70 and 15,085,159.80 is: 22,627,739.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,124,007.80 : 30,186,011.70 = 15,085,159.80 : x
  2. Step 2: Convert to fraction form
    20,124,007.80/30,186,011.70 = 15,085,159.80/x
  3. Step 3: Cross multiply
    20,124,007.80x = 30,186,011.70 × 15,085,159.80
  4. Step 4: Simplify right side
    20,124,007.80x = 455,360,810,219,169.69
  5. Step 5: Solve for x
    x = 455,360,810,219,169.69/20,124,007.80
  6. Step 6: Final answer
    x = 22,627,739.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.