Home / 20,421,638.90-30,632,458.35-16,642,502.90

Finding the Fourth Proportional to 20,421,638.90, 30,632,458.35 and 16,642,502.90

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Solution

The fourth proportional to 20,421,638.90, 30,632,458.35 and 16,642,502.90 is: 24,963,754.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,421,638.90 : 30,632,458.35 = 16,642,502.90 : x
  2. Step 2: Convert to fraction form
    20,421,638.90/30,632,458.35 = 16,642,502.90/x
  3. Step 3: Cross multiply
    20,421,638.90x = 30,632,458.35 × 16,642,502.90
  4. Step 4: Simplify right side
    20,421,638.90x = 509,800,776,924,004.25
  5. Step 5: Solve for x
    x = 509,800,776,924,004.25/20,421,638.90
  6. Step 6: Final answer
    x = 24,963,754.35

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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.