Home / 9,990,243.39-13,786,535.69-5,406,564.76

Finding the Fourth Proportional to 9,990,243.39, 13,786,535.69 and 5,406,564.76

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Solution

The fourth proportional to 9,990,243.39, 13,786,535.69 and 5,406,564.76 is: 7,461,059.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,990,243.39 : 13,786,535.69 = 5,406,564.76 : x
  2. Step 2: Convert to fraction form
    9,990,243.39/13,786,535.69 = 5,406,564.76/x
  3. Step 3: Cross multiply
    9,990,243.39x = 13,786,535.69 × 5,406,564.76
  4. Step 4: Simplify right side
    9,990,243.39x = 74,537,798,090,772.92
  5. Step 5: Solve for x
    x = 74,537,798,090,772.92/9,990,243.39
  6. Step 6: Final answer
    x = 7,461,059.28

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.