Home / 893,932,042.81-1,233,616,429.08-492,037,198.78

Finding the Fourth Proportional to 893,932,042.81, 1,233,616,429.08 and 492,037,198.78

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Solution

The fourth proportional to 893,932,042.81, 1,233,616,429.08 and 492,037,198.78 is: 679,005,945.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    893,932,042.81 : 1,233,616,429.08 = 492,037,198.78 : x
  2. Step 2: Convert to fraction form
    893,932,042.81/1,233,616,429.08 = 492,037,198.78/x
  3. Step 3: Cross multiply
    893,932,042.81x = 1,233,616,429.08 × 492,037,198.78
  4. Step 4: Simplify right side
    893,932,042.81x = 606,985,172,133,509,632
  5. Step 5: Solve for x
    x = 606,985,172,133,509,632/893,932,042.81
  6. Step 6: Final answer
    x = 679,005,945.72

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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.