Home / 140,157,148.80-210,235,723.20-82,714,281.60

Finding the Fourth Proportional to 140,157,148.80, 210,235,723.20 and 82,714,281.60

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Solution

The fourth proportional to 140,157,148.80, 210,235,723.20 and 82,714,281.60 is: 124,071,422.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,157,148.80 : 210,235,723.20 = 82,714,281.60 : x
  2. Step 2: Convert to fraction form
    140,157,148.80/210,235,723.20 = 82,714,281.60/x
  3. Step 3: Cross multiply
    140,157,148.80x = 210,235,723.20 × 82,714,281.60
  4. Step 4: Simplify right side
    140,157,148.80x = 17,389,496,811,144,450
  5. Step 5: Solve for x
    x = 17,389,496,811,144,450/140,157,148.80
  6. Step 6: Final answer
    x = 124,071,422.40

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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.