Home / 21,783,423,005.32-30,060,818,176.70-12,138,559,486.80

Finding the Fourth Proportional to 21,783,423,005.32, 30,060,818,176.70 and 12,138,559,486.80

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Solution

The fourth proportional to 21,783,423,005.32, 30,060,818,176.70 and 12,138,559,486.80 is: 16,751,041,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,783,423,005.32 : 30,060,818,176.70 = 12,138,559,486.80 : x
  2. Step 2: Convert to fraction form
    21,783,423,005.32/30,060,818,176.70 = 12,138,559,486.80/x
  3. Step 3: Cross multiply
    21,783,423,005.32x = 30,060,818,176.70 × 12,138,559,486.80
  4. Step 4: Simplify right side
    21,783,423,005.32x = 364,895,029,659,836,088,320
  5. Step 5: Solve for x
    x = 364,895,029,659,836,088,320/21,783,423,005.32
  6. Step 6: Final answer
    x = 16,751,041,816.10

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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.