Home / 100,292,810.61-138,423,927.47-65,054,286.51

Finding the Fourth Proportional to 100,292,810.61, 138,423,927.47 and 65,054,286.51

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Solution

The fourth proportional to 100,292,810.61, 138,423,927.47 and 65,054,286.51 is: 89,787,790.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,292,810.61 : 138,423,927.47 = 65,054,286.51 : x
  2. Step 2: Convert to fraction form
    100,292,810.61/138,423,927.47 = 65,054,286.51/x
  3. Step 3: Cross multiply
    100,292,810.61x = 138,423,927.47 × 65,054,286.51
  4. Step 4: Simplify right side
    100,292,810.61x = 9,005,069,837,147,568
  5. Step 5: Solve for x
    x = 9,005,069,837,147,568/100,292,810.61
  6. Step 6: Final answer
    x = 89,787,790.20

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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.