Home / 20,213,031.40-30,319,547.10-8,076,493.60

Finding the Fourth Proportional to 20,213,031.40, 30,319,547.10 and 8,076,493.60

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Solution

The fourth proportional to 20,213,031.40, 30,319,547.10 and 8,076,493.60 is: 12,114,740.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,213,031.40 : 30,319,547.10 = 8,076,493.60 : x
  2. Step 2: Convert to fraction form
    20,213,031.40/30,319,547.10 = 8,076,493.60/x
  3. Step 3: Cross multiply
    20,213,031.40x = 30,319,547.10 × 8,076,493.60
  4. Step 4: Simplify right side
    20,213,031.40x = 244,875,628,108,048.56
  5. Step 5: Solve for x
    x = 244,875,628,108,048.56/20,213,031.40
  6. Step 6: Final answer
    x = 12,114,740.40

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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.