Home / 18,721,210.40-28,081,815.60-17,461,498.40

Finding the Fourth Proportional to 18,721,210.40, 28,081,815.60 and 17,461,498.40

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Solution

The fourth proportional to 18,721,210.40, 28,081,815.60 and 17,461,498.40 is: 26,192,247.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,721,210.40 : 28,081,815.60 = 17,461,498.40 : x
  2. Step 2: Convert to fraction form
    18,721,210.40/28,081,815.60 = 17,461,498.40/x
  3. Step 3: Cross multiply
    18,721,210.40x = 28,081,815.60 × 17,461,498.40
  4. Step 4: Simplify right side
    18,721,210.40x = 490,350,578,168,495
  5. Step 5: Solve for x
    x = 490,350,578,168,495/18,721,210.40
  6. Step 6: Final answer
    x = 26,192,247.60

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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.