Home / 931,681,861.80-1,396,335,907.80-495,191,653.80

Finding the Fourth Proportional to 931,681,861.80, 1,396,335,907.80 and 495,191,653.80

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Solution

The fourth proportional to 931,681,861.80, 1,396,335,907.80 and 495,191,653.80 is: 742,156,647.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    931,681,861.80 : 1,396,335,907.80 = 495,191,653.80 : x
  2. Step 2: Convert to fraction form
    931,681,861.80/1,396,335,907.80 = 495,191,653.80/x
  3. Step 3: Cross multiply
    931,681,861.80x = 1,396,335,907.80 × 495,191,653.80
  4. Step 4: Simplify right side
    931,681,861.80x = 691,453,887,443,806,336
  5. Step 5: Solve for x
    x = 691,453,887,443,806,336/931,681,861.80
  6. Step 6: Final answer
    x = 742,156,647.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.