Home / 772,457,960.73-1,065,997,531.23-420,031,426.05

Finding the Fourth Proportional to 772,457,960.73, 1,065,997,531.23 and 420,031,426.05

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Solution

The fourth proportional to 772,457,960.73, 1,065,997,531.23 and 420,031,426.05 is: 579,646,383.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,457,960.73 : 1,065,997,531.23 = 420,031,426.05 : x
  2. Step 2: Convert to fraction form
    772,457,960.73/1,065,997,531.23 = 420,031,426.05/x
  3. Step 3: Cross multiply
    772,457,960.73x = 1,065,997,531.23 × 420,031,426.05
  4. Step 4: Simplify right side
    772,457,960.73x = 447,752,463,208,316,352
  5. Step 5: Solve for x
    x = 447,752,463,208,316,352/772,457,960.73
  6. Step 6: Final answer
    x = 579,646,383.33

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.