Home / 874,528,764.32-1,206,849,785.67-478,053,369.52

Finding the Fourth Proportional to 874,528,764.32, 1,206,849,785.67 and 478,053,369.52

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Solution

The fourth proportional to 874,528,764.32, 1,206,849,785.67 and 478,053,369.52 is: 659,713,699.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,528,764.32 : 1,206,849,785.67 = 478,053,369.52 : x
  2. Step 2: Convert to fraction form
    874,528,764.32/1,206,849,785.67 = 478,053,369.52/x
  3. Step 3: Cross multiply
    874,528,764.32x = 1,206,849,785.67 × 478,053,369.52
  4. Step 4: Simplify right side
    874,528,764.32x = 576,938,606,541,016,192
  5. Step 5: Solve for x
    x = 576,938,606,541,016,192/874,528,764.32
  6. Step 6: Final answer
    x = 659,713,699.63

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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.