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Finding the Fourth Proportional to 873,702,768.87, 1,205,702,655.71 and 477,226,011.29

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Solution

The fourth proportional to 873,702,768.87, 1,205,702,655.71 and 477,226,011.29 is: 658,567,981.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,702,768.87 : 1,205,702,655.71 = 477,226,011.29 : x
  2. Step 2: Convert to fraction form
    873,702,768.87/1,205,702,655.71 = 477,226,011.29/x
  3. Step 3: Cross multiply
    873,702,768.87x = 1,205,702,655.71 × 477,226,011.29
  4. Step 4: Simplify right side
    873,702,768.87x = 575,392,669,177,828,800
  5. Step 5: Solve for x
    x = 575,392,669,177,828,800/873,702,768.87
  6. Step 6: Final answer
    x = 658,567,981.79

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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.