Home / 829,235,573.76-1,242,896,770.08-311,335,700.16

Finding the Fourth Proportional to 829,235,573.76, 1,242,896,770.08 and 311,335,700.16

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Solution

The fourth proportional to 829,235,573.76, 1,242,896,770.08 and 311,335,700.16 is: 466,644,399.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    829,235,573.76 : 1,242,896,770.08 = 311,335,700.16 : x
  2. Step 2: Convert to fraction form
    829,235,573.76/1,242,896,770.08 = 311,335,700.16/x
  3. Step 3: Cross multiply
    829,235,573.76x = 1,242,896,770.08 × 311,335,700.16
  4. Step 4: Simplify right side
    829,235,573.76x = 386,958,136,139,459,328
  5. Step 5: Solve for x
    x = 386,958,136,139,459,328/829,235,573.76
  6. Step 6: Final answer
    x = 466,644,399.23

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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.