Home / 704,158,218.40-1,056,232,078.80-212,870,538.40

Finding the Fourth Proportional to 704,158,218.40, 1,056,232,078.80 and 212,870,538.40

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Solution

The fourth proportional to 704,158,218.40, 1,056,232,078.80 and 212,870,538.40 is: 319,304,220.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    704,158,218.40 : 1,056,232,078.80 = 212,870,538.40 : x
  2. Step 2: Convert to fraction form
    704,158,218.40/1,056,232,078.80 = 212,870,538.40/x
  3. Step 3: Cross multiply
    704,158,218.40x = 1,056,232,078.80 × 212,870,538.40
  4. Step 4: Simplify right side
    704,158,218.40x = 224,840,691,289,507,232
  5. Step 5: Solve for x
    x = 224,840,691,289,507,232/704,158,218.40
  6. Step 6: Final answer
    x = 319,304,220.86

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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.