Home / 20,853,111,497.40-31,279,667,246.10-16,720,626,281.40

Finding the Fourth Proportional to 20,853,111,497.40, 31,279,667,246.10 and 16,720,626,281.40

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Solution

The fourth proportional to 20,853,111,497.40, 31,279,667,246.10 and 16,720,626,281.40 is: 25,080,939,422.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,853,111,497.40 : 31,279,667,246.10 = 16,720,626,281.40 : x
  2. Step 2: Convert to fraction form
    20,853,111,497.40/31,279,667,246.10 = 16,720,626,281.40/x
  3. Step 3: Cross multiply
    20,853,111,497.40x = 31,279,667,246.10 × 16,720,626,281.40
  4. Step 4: Simplify right side
    20,853,111,497.40x = 523,015,626,228,586,381,312
  5. Step 5: Solve for x
    x = 523,015,626,228,586,381,312/20,853,111,497.40
  6. Step 6: Final answer
    x = 25,080,939,422.10

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1.5x scale

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.