Home / 877,866,057.66-1,316,732,866.52-279,579,730.71

Finding the Fourth Proportional to 877,866,057.66, 1,316,732,866.52 and 279,579,730.71

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Solution

The fourth proportional to 877,866,057.66, 1,316,732,866.52 and 279,579,730.71 is: 419,348,506.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    877,866,057.66 : 1,316,732,866.52 = 279,579,730.71 : x
  2. Step 2: Convert to fraction form
    877,866,057.66/1,316,732,866.52 = 279,579,730.71/x
  3. Step 3: Cross multiply
    877,866,057.66x = 1,316,732,866.52 × 279,579,730.71
  4. Step 4: Simplify right side
    877,866,057.66x = 368,131,820,242,207,872
  5. Step 5: Solve for x
    x = 368,131,820,242,207,872/877,866,057.66
  6. Step 6: Final answer
    x = 419,348,506.56

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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.