Home / 782,435,855.57-1,079,772,008.88-425,210,723.21

Finding the Fourth Proportional to 782,435,855.57, 1,079,772,008.88 and 425,210,723.21

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Solution

The fourth proportional to 782,435,855.57, 1,079,772,008.88 and 425,210,723.21 is: 586,796,519.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,435,855.57 : 1,079,772,008.88 = 425,210,723.21 : x
  2. Step 2: Convert to fraction form
    782,435,855.57/1,079,772,008.88 = 425,210,723.21/x
  3. Step 3: Cross multiply
    782,435,855.57x = 1,079,772,008.88 × 425,210,723.21
  4. Step 4: Simplify right side
    782,435,855.57x = 459,130,636,792,380,544
  5. Step 5: Solve for x
    x = 459,130,636,792,380,544/782,435,855.57
  6. Step 6: Final answer
    x = 586,796,519.52

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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.