Home / 30,635,627.10-45,890,455.05-21,061,815.90

Finding the Fourth Proportional to 30,635,627.10, 45,890,455.05 and 21,061,815.90

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Solution

The fourth proportional to 30,635,627.10, 45,890,455.05 and 21,061,815.90 is: 31,549,421.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,635,627.10 : 45,890,455.05 = 21,061,815.90 : x
  2. Step 2: Convert to fraction form
    30,635,627.10/45,890,455.05 = 21,061,815.90/x
  3. Step 3: Cross multiply
    30,635,627.10x = 45,890,455.05 × 21,061,815.90
  4. Step 4: Simplify right side
    30,635,627.10x = 966,536,315,830,325.12
  5. Step 5: Solve for x
    x = 966,536,315,830,325.12/30,635,627.10
  6. Step 6: Final answer
    x = 31,549,421.62

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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.