Home / 14,128,060,485.12-19,490,597,278.56-8,409,138,187.20

Finding the Fourth Proportional to 14,128,060,485.12, 19,490,597,278.56 and 8,409,138,187.20

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Solution

The fourth proportional to 14,128,060,485.12, 19,490,597,278.56 and 8,409,138,187.20 is: 11,600,964,338.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,128,060,485.12 : 19,490,597,278.56 = 8,409,138,187.20 : x
  2. Step 2: Convert to fraction form
    14,128,060,485.12/19,490,597,278.56 = 8,409,138,187.20/x
  3. Step 3: Cross multiply
    14,128,060,485.12x = 19,490,597,278.56 × 8,409,138,187.20
  4. Step 4: Simplify right side
    14,128,060,485.12x = 163,899,125,866,475,290,624
  5. Step 5: Solve for x
    x = 163,899,125,866,475,290,624/14,128,060,485.12
  6. Step 6: Final answer
    x = 11,600,964,338.95

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1.5x scale

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.