Home / 39,857,146.40-59,785,719.60-12,930,802.40

Finding the Fourth Proportional to 39,857,146.40, 59,785,719.60 and 12,930,802.40

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Solution

The fourth proportional to 39,857,146.40, 59,785,719.60 and 12,930,802.40 is: 19,396,203.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,857,146.40 : 59,785,719.60 = 12,930,802.40 : x
  2. Step 2: Convert to fraction form
    39,857,146.40/59,785,719.60 = 12,930,802.40/x
  3. Step 3: Cross multiply
    39,857,146.40x = 59,785,719.60 × 12,930,802.40
  4. Step 4: Simplify right side
    39,857,146.40x = 773,077,326,489,407.12
  5. Step 5: Solve for x
    x = 773,077,326,489,407.12/39,857,146.40
  6. Step 6: Final answer
    x = 19,396,203.60

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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.