Home / 19,857,085.60-29,785,628.40-7,078,007.20

Finding the Fourth Proportional to 19,857,085.60, 29,785,628.40 and 7,078,007.20

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Solution

The fourth proportional to 19,857,085.60, 29,785,628.40 and 7,078,007.20 is: 10,617,010.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,857,085.60 : 29,785,628.40 = 7,078,007.20 : x
  2. Step 2: Convert to fraction form
    19,857,085.60/29,785,628.40 = 7,078,007.20/x
  3. Step 3: Cross multiply
    19,857,085.60x = 29,785,628.40 × 7,078,007.20
  4. Step 4: Simplify right side
    19,857,085.60x = 210,822,892,271,724.47
  5. Step 5: Solve for x
    x = 210,822,892,271,724.47/19,857,085.60
  6. Step 6: Final answer
    x = 10,617,010.80

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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.