Home / 15,515,861,740.16-21,411,888,382.15-8,379,274,865.08

Finding the Fourth Proportional to 15,515,861,740.16, 21,411,888,382.15 and 8,379,274,865.08

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Solution

The fourth proportional to 15,515,861,740.16, 21,411,888,382.15 and 8,379,274,865.08 is: 11,563,398,871.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,515,861,740.16 : 21,411,888,382.15 = 8,379,274,865.08 : x
  2. Step 2: Convert to fraction form
    15,515,861,740.16/21,411,888,382.15 = 8,379,274,865.08/x
  3. Step 3: Cross multiply
    15,515,861,740.16x = 21,411,888,382.15 × 8,379,274,865.08
  4. Step 4: Simplify right side
    15,515,861,740.16x = 179,416,098,134,447,980,544
  5. Step 5: Solve for x
    x = 179,416,098,134,447,980,544/15,515,861,740.16
  6. Step 6: Final answer
    x = 11,563,398,871.37

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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.