Home / 53,280,272.90-79,885,417.35-20,912,672.90

Finding the Fourth Proportional to 53,280,272.90, 79,885,417.35 and 20,912,672.90

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Solution

The fourth proportional to 53,280,272.90, 79,885,417.35 and 20,912,672.90 is: 31,355,274.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,280,272.90 : 79,885,417.35 = 20,912,672.90 : x
  2. Step 2: Convert to fraction form
    53,280,272.90/79,885,417.35 = 20,912,672.90/x
  3. Step 3: Cross multiply
    53,280,272.90x = 79,885,417.35 × 20,912,672.90
  4. Step 4: Simplify right side
    53,280,272.90x = 1,670,617,602,520,534.50
  5. Step 5: Solve for x
    x = 1,670,617,602,520,534.50/53,280,272.90
  6. Step 6: Final answer
    x = 31,355,274.88

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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.