Home / 874,155,987.77-1,206,404,044.09-497,828,502.23

Finding the Fourth Proportional to 874,155,987.77, 1,206,404,044.09 and 497,828,502.23

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Solution

The fourth proportional to 874,155,987.77, 1,206,404,044.09 and 497,828,502.23 is: 687,042,503.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,155,987.77 : 1,206,404,044.09 = 497,828,502.23 : x
  2. Step 2: Convert to fraction form
    874,155,987.77/1,206,404,044.09 = 497,828,502.23/x
  3. Step 3: Cross multiply
    874,155,987.77x = 1,206,404,044.09 × 497,828,502.23
  4. Step 4: Simplify right side
    874,155,987.77x = 600,582,318,346,263,040
  5. Step 5: Solve for x
    x = 600,582,318,346,263,040/874,155,987.77
  6. Step 6: Final answer
    x = 687,042,503.57

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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.