Home / 784,945,711.67-1,083,176,274.78-432,501,979.28

Finding the Fourth Proportional to 784,945,711.67, 1,083,176,274.78 and 432,501,979.28

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Solution

The fourth proportional to 784,945,711.67, 1,083,176,274.78 and 432,501,979.28 is: 596,825,838.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    784,945,711.67 : 1,083,176,274.78 = 432,501,979.28 : x
  2. Step 2: Convert to fraction form
    784,945,711.67/1,083,176,274.78 = 432,501,979.28/x
  3. Step 3: Cross multiply
    784,945,711.67x = 1,083,176,274.78 × 432,501,979.28
  4. Step 4: Simplify right side
    784,945,711.67x = 468,475,882,751,487,104
  5. Step 5: Solve for x
    x = 468,475,882,751,487,104/784,945,711.67
  6. Step 6: Final answer
    x = 596,825,838.76

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.