Home / 725,121,664.81-1,000,668,041.45-395,096,803.81

Finding the Fourth Proportional to 725,121,664.81, 1,000,668,041.45 and 395,096,803.81

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Solution

The fourth proportional to 725,121,664.81, 1,000,668,041.45 and 395,096,803.81 is: 545,233,667.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    725,121,664.81 : 1,000,668,041.45 = 395,096,803.81 : x
  2. Step 2: Convert to fraction form
    725,121,664.81/1,000,668,041.45 = 395,096,803.81/x
  3. Step 3: Cross multiply
    725,121,664.81x = 1,000,668,041.45 × 395,096,803.81
  4. Step 4: Simplify right side
    725,121,664.81x = 395,360,744,849,732,160
  5. Step 5: Solve for x
    x = 395,360,744,849,732,160/725,121,664.81
  6. Step 6: Final answer
    x = 545,233,667.72

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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.