Home / 912,326,998.88-1,260,050,461.68-618,461,383.52

Finding the Fourth Proportional to 912,326,998.88, 1,260,050,461.68 and 618,461,383.52

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Solution

The fourth proportional to 912,326,998.88, 1,260,050,461.68 and 618,461,383.52 is: 854,181,179.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,326,998.88 : 1,260,050,461.68 = 618,461,383.52 : x
  2. Step 2: Convert to fraction form
    912,326,998.88/1,260,050,461.68 = 618,461,383.52/x
  3. Step 3: Cross multiply
    912,326,998.88x = 1,260,050,461.68 × 618,461,383.52
  4. Step 4: Simplify right side
    912,326,998.88x = 779,292,551,835,627,520
  5. Step 5: Solve for x
    x = 779,292,551,835,627,520/912,326,998.88
  6. Step 6: Final answer
    x = 854,181,179.33

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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.