Home / 826,335,655.20-1,236,816,097.20-643,593,434.40

Finding the Fourth Proportional to 826,335,655.20, 1,236,816,097.20 and 643,593,434.40

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Solution

The fourth proportional to 826,335,655.20, 1,236,816,097.20 and 643,593,434.40 is: 963,297,075.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    826,335,655.20 : 1,236,816,097.20 = 643,593,434.40 : x
  2. Step 2: Convert to fraction form
    826,335,655.20/1,236,816,097.20 = 643,593,434.40/x
  3. Step 3: Cross multiply
    826,335,655.20x = 1,236,816,097.20 × 643,593,434.40
  4. Step 4: Simplify right side
    826,335,655.20x = 796,006,719,718,152,192
  5. Step 5: Solve for x
    x = 796,006,719,718,152,192/826,335,655.20
  6. Step 6: Final answer
    x = 963,297,075.12

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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.