Home / 15,699,863,278.63-21,667,643,004.54-8,926,696,720.71

Finding the Fourth Proportional to 15,699,863,278.63, 21,667,643,004.54 and 8,926,696,720.71

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Solution

The fourth proportional to 15,699,863,278.63, 21,667,643,004.54 and 8,926,696,720.71 is: 12,319,882,939.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,699,863,278.63 : 21,667,643,004.54 = 8,926,696,720.71 : x
  2. Step 2: Convert to fraction form
    15,699,863,278.63/21,667,643,004.54 = 8,926,696,720.71/x
  3. Step 3: Cross multiply
    15,699,863,278.63x = 21,667,643,004.54 × 8,926,696,720.71
  4. Step 4: Simplify right side
    15,699,863,278.63x = 193,420,477,754,142,162,944
  5. Step 5: Solve for x
    x = 193,420,477,754,142,162,944/15,699,863,278.63
  6. Step 6: Final answer
    x = 12,319,882,939.20

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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.