Home / 1,992,029,785.60-2,988,044,678.40-611,842,079.20

Finding the Fourth Proportional to 1,992,029,785.60, 2,988,044,678.40 and 611,842,079.20

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Solution

The fourth proportional to 1,992,029,785.60, 2,988,044,678.40 and 611,842,079.20 is: 917,763,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,992,029,785.60 : 2,988,044,678.40 = 611,842,079.20 : x
  2. Step 2: Convert to fraction form
    1,992,029,785.60/2,988,044,678.40 = 611,842,079.20/x
  3. Step 3: Cross multiply
    1,992,029,785.60x = 2,988,044,678.40 × 611,842,079.20
  4. Step 4: Simplify right side
    1,992,029,785.60x = 1,828,211,468,774,751,488
  5. Step 5: Solve for x
    x = 1,828,211,468,774,751,488/1,992,029,785.60
  6. Step 6: Final answer
    x = 917,763,118.80

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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.