Home / 839,261,641.80-1,258,388,577.90-431,114,953.80

Finding the Fourth Proportional to 839,261,641.80, 1,258,388,577.90 and 431,114,953.80

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Solution

The fourth proportional to 839,261,641.80, 1,258,388,577.90 and 431,114,953.80 is: 646,413,593.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,261,641.80 : 1,258,388,577.90 = 431,114,953.80 : x
  2. Step 2: Convert to fraction form
    839,261,641.80/1,258,388,577.90 = 431,114,953.80/x
  3. Step 3: Cross multiply
    839,261,641.80x = 1,258,388,577.90 × 431,114,953.80
  4. Step 4: Simplify right side
    839,261,641.80x = 542,510,133,623,806,272
  5. Step 5: Solve for x
    x = 542,510,133,623,806,272/839,261,641.80
  6. Step 6: Final answer
    x = 646,413,593.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.