Home / 838,436,558.22-1,157,047,193.66-486,221,673.51

Finding the Fourth Proportional to 838,436,558.22, 1,157,047,193.66 and 486,221,673.51

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Solution

The fourth proportional to 838,436,558.22, 1,157,047,193.66 and 486,221,673.51 is: 670,988,660.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    838,436,558.22 : 1,157,047,193.66 = 486,221,673.51 : x
  2. Step 2: Convert to fraction form
    838,436,558.22/1,157,047,193.66 = 486,221,673.51/x
  3. Step 3: Cross multiply
    838,436,558.22x = 1,157,047,193.66 × 486,221,673.51
  4. Step 4: Simplify right side
    838,436,558.22x = 562,581,422,828,983,104
  5. Step 5: Solve for x
    x = 562,581,422,828,983,104/838,436,558.22
  6. Step 6: Final answer
    x = 670,988,660.16

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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.