Home / 266,352,014.40-399,528,021.60-84,617,563.20

Finding the Fourth Proportional to 266,352,014.40, 399,528,021.60 and 84,617,563.20

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Solution

The fourth proportional to 266,352,014.40, 399,528,021.60 and 84,617,563.20 is: 126,926,344.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,352,014.40 : 399,528,021.60 = 84,617,563.20 : x
  2. Step 2: Convert to fraction form
    266,352,014.40/399,528,021.60 = 84,617,563.20/x
  3. Step 3: Cross multiply
    266,352,014.40x = 399,528,021.60 × 84,617,563.20
  4. Step 4: Simplify right side
    266,352,014.40x = 33,807,087,617,908,968
  5. Step 5: Solve for x
    x = 33,807,087,617,908,968/266,352,014.40
  6. Step 6: Final answer
    x = 126,926,344.80

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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.