Home / 20,739,276.40-31,108,914.60-19,478,527.60

Finding the Fourth Proportional to 20,739,276.40, 31,108,914.60 and 19,478,527.60

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Solution

The fourth proportional to 20,739,276.40, 31,108,914.60 and 19,478,527.60 is: 29,217,791.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,739,276.40 : 31,108,914.60 = 19,478,527.60 : x
  2. Step 2: Convert to fraction form
    20,739,276.40/31,108,914.60 = 19,478,527.60/x
  3. Step 3: Cross multiply
    20,739,276.40x = 31,108,914.60 × 19,478,527.60
  4. Step 4: Simplify right side
    20,739,276.40x = 605,955,851,642,143
  5. Step 5: Solve for x
    x = 605,955,851,642,143/20,739,276.40
  6. Step 6: Final answer
    x = 29,217,791.40

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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.