Home / 354,294,420.30-531,441,630.45-266,287,790.70

Finding the Fourth Proportional to 354,294,420.30, 531,441,630.45 and 266,287,790.70

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Solution

The fourth proportional to 354,294,420.30, 531,441,630.45 and 266,287,790.70 is: 399,431,686.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,420.30 : 531,441,630.45 = 266,287,790.70 : x
  2. Step 2: Convert to fraction form
    354,294,420.30/531,441,630.45 = 266,287,790.70/x
  3. Step 3: Cross multiply
    354,294,420.30x = 531,441,630.45 × 266,287,790.70
  4. Step 4: Simplify right side
    354,294,420.30x = 141,516,417,658,536,336
  5. Step 5: Solve for x
    x = 141,516,417,658,536,336/354,294,420.30
  6. Step 6: Final answer
    x = 399,431,686.05

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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.