Home / 839,808,748.80-1,259,713,123.20-477,011,692.80

Finding the Fourth Proportional to 839,808,748.80, 1,259,713,123.20 and 477,011,692.80

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Solution

The fourth proportional to 839,808,748.80, 1,259,713,123.20 and 477,011,692.80 is: 715,517,539.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,748.80 : 1,259,713,123.20 = 477,011,692.80 : x
  2. Step 2: Convert to fraction form
    839,808,748.80/1,259,713,123.20 = 477,011,692.80/x
  3. Step 3: Cross multiply
    839,808,748.80x = 1,259,713,123.20 × 477,011,692.80
  4. Step 4: Simplify right side
    839,808,748.80x = 600,897,889,340,007,040
  5. Step 5: Solve for x
    x = 600,897,889,340,007,040/839,808,748.80
  6. Step 6: Final answer
    x = 715,517,539.20

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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.