Home / 21,068,181.60-31,602,272.40-15,759,765.60

Finding the Fourth Proportional to 21,068,181.60, 31,602,272.40 and 15,759,765.60

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Solution

The fourth proportional to 21,068,181.60, 31,602,272.40 and 15,759,765.60 is: 23,639,648.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,068,181.60 : 31,602,272.40 = 15,759,765.60 : x
  2. Step 2: Convert to fraction form
    21,068,181.60/31,602,272.40 = 15,759,765.60/x
  3. Step 3: Cross multiply
    21,068,181.60x = 31,602,272.40 × 15,759,765.60
  4. Step 4: Simplify right side
    21,068,181.60x = 498,044,405,451,349.38
  5. Step 5: Solve for x
    x = 498,044,405,451,349.38/21,068,181.60
  6. Step 6: Final answer
    x = 23,639,648.40

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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.