Home / 1,992,029,385.60-2,988,044,078.40-611,841,679.20

Finding the Fourth Proportional to 1,992,029,385.60, 2,988,044,078.40 and 611,841,679.20

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Solution

The fourth proportional to 1,992,029,385.60, 2,988,044,078.40 and 611,841,679.20 is: 917,762,518.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,029,385.60 : 2,988,044,078.40 = 611,841,679.20 : x
  2. Step 2: Convert to fraction form
    1,992,029,385.60/2,988,044,078.40 = 611,841,679.20/x
  3. Step 3: Cross multiply
    1,992,029,385.60x = 2,988,044,078.40 × 611,841,679.20
  4. Step 4: Simplify right side
    1,992,029,385.60x = 1,828,209,906,451,872,768
  5. Step 5: Solve for x
    x = 1,828,209,906,451,872,768/1,992,029,385.60
  6. Step 6: Final answer
    x = 917,762,518.80

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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.