Home / 916,645,197.56-1,375,066,192.75-392,068,780.16

Finding the Fourth Proportional to 916,645,197.56, 1,375,066,192.75 and 392,068,780.16

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Solution

The fourth proportional to 916,645,197.56, 1,375,066,192.75 and 392,068,780.16 is: 588,145,256.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,645,197.56 : 1,375,066,192.75 = 392,068,780.16 : x
  2. Step 2: Convert to fraction form
    916,645,197.56/1,375,066,192.75 = 392,068,780.16/x
  3. Step 3: Cross multiply
    916,645,197.56x = 1,375,066,192.75 × 392,068,780.16
  4. Step 4: Simplify right side
    916,645,197.56x = 539,120,524,828,787,584
  5. Step 5: Solve for x
    x = 539,120,524,828,787,584/916,645,197.56
  6. Step 6: Final answer
    x = 588,145,256.49

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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.