Home / 777,196,742.80-1,072,529,683.32-442,669,200.88

Finding the Fourth Proportional to 777,196,742.80, 1,072,529,683.32 and 442,669,200.88

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Solution

The fourth proportional to 777,196,742.80, 1,072,529,683.32 and 442,669,200.88 is: 610,882,459.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,196,742.80 : 1,072,529,683.32 = 442,669,200.88 : x
  2. Step 2: Convert to fraction form
    777,196,742.80/1,072,529,683.32 = 442,669,200.88/x
  3. Step 3: Cross multiply
    777,196,742.80x = 1,072,529,683.32 × 442,669,200.88
  4. Step 4: Simplify right side
    777,196,742.80x = 474,775,857,835,343,872
  5. Step 5: Solve for x
    x = 474,775,857,835,343,872/777,196,742.80
  6. Step 6: Final answer
    x = 610,882,459.60

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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.