Home / 1,218,032,634.65-1,680,840,026.66-661,103,724.29

Finding the Fourth Proportional to 1,218,032,634.65, 1,680,840,026.66 and 661,103,724.29

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Solution

The fourth proportional to 1,218,032,634.65, 1,680,840,026.66 and 661,103,724.29 is: 912,298,710.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,218,032,634.65 : 1,680,840,026.66 = 661,103,724.29 : x
  2. Step 2: Convert to fraction form
    1,218,032,634.65/1,680,840,026.66 = 661,103,724.29/x
  3. Step 3: Cross multiply
    1,218,032,634.65x = 1,680,840,026.66 × 661,103,724.29
  4. Step 4: Simplify right side
    1,218,032,634.65x = 1,111,209,601,548,919,040
  5. Step 5: Solve for x
    x = 1,111,209,601,548,919,040/1,218,032,634.65
  6. Step 6: Final answer
    x = 912,298,710.18

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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.