Home / 772,459,872.89-1,065,865,392-454,983,330.33

Finding the Fourth Proportional to 772,459,872.89, 1,065,865,392 and 454,983,330.33

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Solution

The fourth proportional to 772,459,872.89, 1,065,865,392 and 454,983,330.33 is: 627,800,877.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,459,872.89 : 1,065,865,392 = 454,983,330.33 : x
  2. Step 2: Convert to fraction form
    772,459,872.89/1,065,865,392 = 454,983,330.33/x
  3. Step 3: Cross multiply
    772,459,872.89x = 1,065,865,392 × 454,983,330.33
  4. Step 4: Simplify right side
    772,459,872.89x = 484,950,985,735,650,944
  5. Step 5: Solve for x
    x = 484,950,985,735,650,944/772,459,872.89
  6. Step 6: Final answer
    x = 627,800,877.12

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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.