Home / 1,177,971,647.52-1,625,591,677.68-642,122,044.32

Finding the Fourth Proportional to 1,177,971,647.52, 1,625,591,677.68 and 642,122,044.32

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Solution

The fourth proportional to 1,177,971,647.52, 1,625,591,677.68 and 642,122,044.32 is: 886,123,408.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,177,971,647.52 : 1,625,591,677.68 = 642,122,044.32 : x
  2. Step 2: Convert to fraction form
    1,177,971,647.52/1,625,591,677.68 = 642,122,044.32/x
  3. Step 3: Cross multiply
    1,177,971,647.52x = 1,625,591,677.68 × 642,122,044.32
  4. Step 4: Simplify right side
    1,177,971,647.52x = 1,043,828,251,301,460,224
  5. Step 5: Solve for x
    x = 1,043,828,251,301,460,224/1,177,971,647.52
  6. Step 6: Final answer
    x = 886,123,408.40

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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.