Home / 839,808,688.70-1,259,713,033.05-768,383,018.30

Finding the Fourth Proportional to 839,808,688.70, 1,259,713,033.05 and 768,383,018.30

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Solution

The fourth proportional to 839,808,688.70, 1,259,713,033.05 and 768,383,018.30 is: 1,152,574,527.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,808,688.70 : 1,259,713,033.05 = 768,383,018.30 : x
  2. Step 2: Convert to fraction form
    839,808,688.70/1,259,713,033.05 = 768,383,018.30/x
  3. Step 3: Cross multiply
    839,808,688.70x = 1,259,713,033.05 × 768,383,018.30
  4. Step 4: Simplify right side
    839,808,688.70x = 967,942,102,526,806,528
  5. Step 5: Solve for x
    x = 967,942,102,526,806,528/839,808,688.70
  6. Step 6: Final answer
    x = 1,152,574,527.45

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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.