Home / 520,531,518.80-780,252,491.64-175,365,868.88

Finding the Fourth Proportional to 520,531,518.80, 780,252,491.64 and 175,365,868.88

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Solution

The fourth proportional to 520,531,518.80, 780,252,491.64 and 175,365,868.88 is: 262,865,265.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,531,518.80 : 780,252,491.64 = 175,365,868.88 : x
  2. Step 2: Convert to fraction form
    520,531,518.80/780,252,491.64 = 175,365,868.88/x
  3. Step 3: Cross multiply
    520,531,518.80x = 780,252,491.64 × 175,365,868.88
  4. Step 4: Simplify right side
    520,531,518.80x = 136,829,656,142,233,536
  5. Step 5: Solve for x
    x = 136,829,656,142,233,536/520,531,518.80
  6. Step 6: Final answer
    x = 262,865,265.98

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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.