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Finding the Fourth Proportional to 668,338,561.52, 922,261,043.40 and 370,957,409.12

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Solution

The fourth proportional to 668,338,561.52, 922,261,043.40 and 370,957,409.12 is: 511,895,597.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    668,338,561.52 : 922,261,043.40 = 370,957,409.12 : x
  2. Step 2: Convert to fraction form
    668,338,561.52/922,261,043.40 = 370,957,409.12/x
  3. Step 3: Cross multiply
    668,338,561.52x = 922,261,043.40 × 370,957,409.12
  4. Step 4: Simplify right side
    668,338,561.52x = 342,119,567,191,971,840
  5. Step 5: Solve for x
    x = 342,119,567,191,971,840/668,338,561.52
  6. Step 6: Final answer
    x = 511,895,597.37

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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.