Home / 855,720,122.51-1,182,001,504.74-707,639,402.27

Finding the Fourth Proportional to 855,720,122.51, 1,182,001,504.74 and 707,639,402.27

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Solution

The fourth proportional to 855,720,122.51, 1,182,001,504.74 and 707,639,402.27 is: 977,458,419.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    855,720,122.51 : 1,182,001,504.74 = 707,639,402.27 : x
  2. Step 2: Convert to fraction form
    855,720,122.51/1,182,001,504.74 = 707,639,402.27/x
  3. Step 3: Cross multiply
    855,720,122.51x = 1,182,001,504.74 × 707,639,402.27
  4. Step 4: Simplify right side
    855,720,122.51x = 836,430,838,296,454,144
  5. Step 5: Solve for x
    x = 836,430,838,296,454,144/855,720,122.51
  6. Step 6: Final answer
    x = 977,458,419.28

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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.