Home / 777,061,915.76-1,072,406,572.44-442,548,582.32

Finding the Fourth Proportional to 777,061,915.76, 1,072,406,572.44 and 442,548,582.32

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Solution

The fourth proportional to 777,061,915.76, 1,072,406,572.44 and 442,548,582.32 is: 610,751,857.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    777,061,915.76 : 1,072,406,572.44 = 442,548,582.32 : x
  2. Step 2: Convert to fraction form
    777,061,915.76/1,072,406,572.44 = 442,548,582.32/x
  3. Step 3: Cross multiply
    777,061,915.76x = 1,072,406,572.44 × 442,548,582.32
  4. Step 4: Simplify right side
    777,061,915.76x = 474,592,008,303,972,416
  5. Step 5: Solve for x
    x = 474,592,008,303,972,416/777,061,915.76
  6. Step 6: Final answer
    x = 610,751,857.32

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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.