Home / 23,128,869.80-31,917,809.06-12,816,260.84

Finding the Fourth Proportional to 23,128,869.80, 31,917,809.06 and 12,816,260.84

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Solution

The fourth proportional to 23,128,869.80, 31,917,809.06 and 12,816,260.84 is: 17,686,422.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,128,869.80 : 31,917,809.06 = 12,816,260.84 : x
  2. Step 2: Convert to fraction form
    23,128,869.80/31,917,809.06 = 12,816,260.84/x
  3. Step 3: Cross multiply
    23,128,869.80x = 31,917,809.06 × 12,816,260.84
  4. Step 4: Simplify right side
    23,128,869.80x = 409,066,966,354,275.19
  5. Step 5: Solve for x
    x = 409,066,966,354,275.19/23,128,869.80
  6. Step 6: Final answer
    x = 17,686,422.64

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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.