Home / 15,729,080,133.53-21,711,303,382.97-12,519,876,814.67

Finding the Fourth Proportional to 15,729,080,133.53, 21,711,303,382.97 and 12,519,876,814.67

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Solution

The fourth proportional to 15,729,080,133.53, 21,711,303,382.97 and 12,519,876,814.67 is: 17,281,547,397.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,729,080,133.53 : 21,711,303,382.97 = 12,519,876,814.67 : x
  2. Step 2: Convert to fraction form
    15,729,080,133.53/21,711,303,382.97 = 12,519,876,814.67/x
  3. Step 3: Cross multiply
    15,729,080,133.53x = 21,711,303,382.97 × 12,519,876,814.67
  4. Step 4: Simplify right side
    15,729,080,133.53x = 271,822,843,840,649,854,976
  5. Step 5: Solve for x
    x = 271,822,843,840,649,854,976/15,729,080,133.53
  6. Step 6: Final answer
    x = 17,281,547,397.12

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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.