Home / 1,417,187,820.60-2,125,781,730.90-1,287,941,369.40

Finding the Fourth Proportional to 1,417,187,820.60, 2,125,781,730.90 and 1,287,941,369.40

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Solution

The fourth proportional to 1,417,187,820.60, 2,125,781,730.90 and 1,287,941,369.40 is: 1,931,912,054.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,417,187,820.60 : 2,125,781,730.90 = 1,287,941,369.40 : x
  2. Step 2: Convert to fraction form
    1,417,187,820.60/2,125,781,730.90 = 1,287,941,369.40/x
  3. Step 3: Cross multiply
    1,417,187,820.60x = 2,125,781,730.90 × 1,287,941,369.40
  4. Step 4: Simplify right side
    1,417,187,820.60x = 2,737,882,233,540,848,640
  5. Step 5: Solve for x
    x = 2,737,882,233,540,848,640/1,417,187,820.60
  6. Step 6: Final answer
    x = 1,931,912,054.10

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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.