Home / 560,106,871.20-840,160,306.80-521,843,119.20

Finding the Fourth Proportional to 560,106,871.20, 840,160,306.80 and 521,843,119.20

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Solution

The fourth proportional to 560,106,871.20, 840,160,306.80 and 521,843,119.20 is: 782,764,678.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    560,106,871.20 : 840,160,306.80 = 521,843,119.20 : x
  2. Step 2: Convert to fraction form
    560,106,871.20/840,160,306.80 = 521,843,119.20/x
  3. Step 3: Cross multiply
    560,106,871.20x = 840,160,306.80 × 521,843,119.20
  4. Step 4: Simplify right side
    560,106,871.20x = 438,431,875,128,540,928
  5. Step 5: Solve for x
    x = 438,431,875,128,540,928/560,106,871.20
  6. Step 6: Final answer
    x = 782,764,678.80

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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.