Home / 21,050,135.20-31,575,202.80-18,446,730.40

Finding the Fourth Proportional to 21,050,135.20, 31,575,202.80 and 18,446,730.40

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Solution

The fourth proportional to 21,050,135.20, 31,575,202.80 and 18,446,730.40 is: 27,670,095.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,050,135.20 : 31,575,202.80 = 18,446,730.40 : x
  2. Step 2: Convert to fraction form
    21,050,135.20/31,575,202.80 = 18,446,730.40/x
  3. Step 3: Cross multiply
    21,050,135.20x = 31,575,202.80 × 18,446,730.40
  4. Step 4: Simplify right side
    21,050,135.20x = 582,459,253,376,925.12
  5. Step 5: Solve for x
    x = 582,459,253,376,925.12/21,050,135.20
  6. Step 6: Final answer
    x = 27,670,095.60

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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.