Home / 890,031,942.70-1,335,614,784.45-521,566,182.70

Finding the Fourth Proportional to 890,031,942.70, 1,335,614,784.45 and 521,566,182.70

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Solution

The fourth proportional to 890,031,942.70, 1,335,614,784.45 and 521,566,182.70 is: 782,681,464.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    890,031,942.70 : 1,335,614,784.45 = 521,566,182.70 : x
  2. Step 2: Convert to fraction form
    890,031,942.70/1,335,614,784.45 = 521,566,182.70/x
  3. Step 3: Cross multiply
    890,031,942.70x = 1,335,614,784.45 × 521,566,182.70
  4. Step 4: Simplify right side
    890,031,942.70x = 696,611,504,683,269,888
  5. Step 5: Solve for x
    x = 696,611,504,683,269,888/890,031,942.70
  6. Step 6: Final answer
    x = 782,681,464.86

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1.5x scale

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.