Home / 875,124,118.32-1,207,622,437.56-478,568,854.32

Finding the Fourth Proportional to 875,124,118.32, 1,207,622,437.56 and 478,568,854.32

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Solution

The fourth proportional to 875,124,118.32, 1,207,622,437.56 and 478,568,854.32 is: 660,398,307.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    875,124,118.32 : 1,207,622,437.56 = 478,568,854.32 : x
  2. Step 2: Convert to fraction form
    875,124,118.32/1,207,622,437.56 = 478,568,854.32/x
  3. Step 3: Cross multiply
    875,124,118.32x = 1,207,622,437.56 × 478,568,854.32
  4. Step 4: Simplify right side
    875,124,118.32x = 577,930,486,394,214,912
  5. Step 5: Solve for x
    x = 577,930,486,394,214,912/875,124,118.32
  6. Step 6: Final answer
    x = 660,398,307.28

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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.