Home / 210,235,909.20-315,353,863.80-124,071,608.40

Finding the Fourth Proportional to 210,235,909.20, 315,353,863.80 and 124,071,608.40

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Solution

The fourth proportional to 210,235,909.20, 315,353,863.80 and 124,071,608.40 is: 186,107,412.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,235,909.20 : 315,353,863.80 = 124,071,608.40 : x
  2. Step 2: Convert to fraction form
    210,235,909.20/315,353,863.80 = 124,071,608.40/x
  3. Step 3: Cross multiply
    210,235,909.20x = 315,353,863.80 × 124,071,608.40
  4. Step 4: Simplify right side
    210,235,909.20x = 39,126,461,096,820,536
  5. Step 5: Solve for x
    x = 39,126,461,096,820,536/210,235,909.20
  6. Step 6: Final answer
    x = 186,107,412.60

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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.