Home / 128,304,069.60-192,456,104.40-42,045,290.40

Finding the Fourth Proportional to 128,304,069.60, 192,456,104.40 and 42,045,290.40

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Solution

The fourth proportional to 128,304,069.60, 192,456,104.40 and 42,045,290.40 is: 63,067,935.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    128,304,069.60 : 192,456,104.40 = 42,045,290.40 : x
  2. Step 2: Convert to fraction form
    128,304,069.60/192,456,104.40 = 42,045,290.40/x
  3. Step 3: Cross multiply
    128,304,069.60x = 192,456,104.40 × 42,045,290.40
  4. Step 4: Simplify right side
    128,304,069.60x = 8,091,872,798,750,718
  5. Step 5: Solve for x
    x = 8,091,872,798,750,718/128,304,069.60
  6. Step 6: Final answer
    x = 63,067,935.60

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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.