Home / 28,077,008.40-42,115,512.60-12,960,464.40

Finding the Fourth Proportional to 28,077,008.40, 42,115,512.60 and 12,960,464.40

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Solution

The fourth proportional to 28,077,008.40, 42,115,512.60 and 12,960,464.40 is: 19,440,696.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,077,008.40 : 42,115,512.60 = 12,960,464.40 : x
  2. Step 2: Convert to fraction form
    28,077,008.40/42,115,512.60 = 12,960,464.40/x
  3. Step 3: Cross multiply
    28,077,008.40x = 42,115,512.60 × 12,960,464.40
  4. Step 4: Simplify right side
    28,077,008.40x = 545,836,601,740,051.50
  5. Step 5: Solve for x
    x = 545,836,601,740,051.50/28,077,008.40
  6. Step 6: Final answer
    x = 19,440,696.60

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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.