Home / 205,020,005,155.80-282,927,508,708.92-122,620,763,272.02

Finding the Fourth Proportional to 205,020,005,155.80, 282,927,508,708.92 and 122,620,763,272.02

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Solution

The fourth proportional to 205,020,005,155.80, 282,927,508,708.92 and 122,620,763,272.02 is: 169,216,594,459.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,020,005,155.80 : 282,927,508,708.92 = 122,620,763,272.02 : x
  2. Step 2: Convert to fraction form
    205,020,005,155.80/282,927,508,708.92 = 122,620,763,272.02/x
  3. Step 3: Cross multiply
    205,020,005,155.80x = 282,927,508,708.92 × 122,620,763,272.02
  4. Step 4: Simplify right side
    205,020,005,155.80x = 34,692,787,068,538,856,669,184
  5. Step 5: Solve for x
    x = 34,692,787,068,538,856,669,184/205,020,005,155.80
  6. Step 6: Final answer
    x = 169,216,594,459.53

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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.