Home / 21,384,186.80-32,076,280.20-5,210,009.60

Finding the Fourth Proportional to 21,384,186.80, 32,076,280.20 and 5,210,009.60

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Solution

The fourth proportional to 21,384,186.80, 32,076,280.20 and 5,210,009.60 is: 7,815,014.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,384,186.80 : 32,076,280.20 = 5,210,009.60 : x
  2. Step 2: Convert to fraction form
    21,384,186.80/32,076,280.20 = 5,210,009.60/x
  3. Step 3: Cross multiply
    21,384,186.80x = 32,076,280.20 × 5,210,009.60
  4. Step 4: Simplify right side
    21,384,186.80x = 167,117,727,774,289.91
  5. Step 5: Solve for x
    x = 167,117,727,774,289.91/21,384,186.80
  6. Step 6: Final answer
    x = 7,815,014.40

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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.