Home / 839,990,879.42-1,159,014,354.59-482,689,642.64

Finding the Fourth Proportional to 839,990,879.42, 1,159,014,354.59 and 482,689,642.64

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Solution

The fourth proportional to 839,990,879.42, 1,159,014,354.59 and 482,689,642.64 is: 666,012,260.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,990,879.42 : 1,159,014,354.59 = 482,689,642.64 : x
  2. Step 2: Convert to fraction form
    839,990,879.42/1,159,014,354.59 = 482,689,642.64/x
  3. Step 3: Cross multiply
    839,990,879.42x = 1,159,014,354.59 × 482,689,642.64
  4. Step 4: Simplify right side
    839,990,879.42x = 559,444,224,631,677,312
  5. Step 5: Solve for x
    x = 559,444,224,631,677,312/839,990,879.42
  6. Step 6: Final answer
    x = 666,012,260.77

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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.