Home / 520,039,021.80-780,174,006.30-174,982,909.80

Finding the Fourth Proportional to 520,039,021.80, 780,174,006.30 and 174,982,909.80

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Solution

The fourth proportional to 520,039,021.80, 780,174,006.30 and 174,982,909.80 is: 262,513,219.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,039,021.80 : 780,174,006.30 = 174,982,909.80 : x
  2. Step 2: Convert to fraction form
    520,039,021.80/780,174,006.30 = 174,982,909.80/x
  3. Step 3: Cross multiply
    520,039,021.80x = 780,174,006.30 × 174,982,909.80
  4. Step 4: Simplify right side
    520,039,021.80x = 136,517,117,772,697,536
  5. Step 5: Solve for x
    x = 136,517,117,772,697,536/520,039,021.80
  6. Step 6: Final answer
    x = 262,513,219.30

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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.