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Finding the Fourth Proportional to 520,031,998.80, 780,163,471.80 and 174,975,886.80

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Solution

The fourth proportional to 520,031,998.80, 780,163,471.80 and 174,975,886.80 is: 262,502,683.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,031,998.80 : 780,163,471.80 = 174,975,886.80 : x
  2. Step 2: Convert to fraction form
    520,031,998.80/780,163,471.80 = 174,975,886.80/x
  3. Step 3: Cross multiply
    520,031,998.80x = 780,163,471.80 × 174,975,886.80
  4. Step 4: Simplify right side
    520,031,998.80x = 136,509,795,327,171,792
  5. Step 5: Solve for x
    x = 136,509,795,327,171,792/520,031,998.80
  6. Step 6: Final answer
    x = 262,502,683.76

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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.