Home / 7,139,416.40-10,693,378.20-4,294,566.80

Finding the Fourth Proportional to 7,139,416.40, 10,693,378.20 and 4,294,566.80

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Solution

The fourth proportional to 7,139,416.40, 10,693,378.20 and 4,294,566.80 is: 6,432,378.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,139,416.40 : 10,693,378.20 = 4,294,566.80 : x
  2. Step 2: Convert to fraction form
    7,139,416.40/10,693,378.20 = 4,294,566.80/x
  3. Step 3: Cross multiply
    7,139,416.40x = 10,693,378.20 × 4,294,566.80
  4. Step 4: Simplify right side
    7,139,416.40x = 45,923,426,997,563.76
  5. Step 5: Solve for x
    x = 45,923,426,997,563.76/7,139,416.40
  6. Step 6: Final answer
    x = 6,432,378.28

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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.