Home / 354,294,537.40-531,441,806.10-243,329,656.60

Finding the Fourth Proportional to 354,294,537.40, 531,441,806.10 and 243,329,656.60

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Solution

The fourth proportional to 354,294,537.40, 531,441,806.10 and 243,329,656.60 is: 364,994,484.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,294,537.40 : 531,441,806.10 = 243,329,656.60 : x
  2. Step 2: Convert to fraction form
    354,294,537.40/531,441,806.10 = 243,329,656.60/x
  3. Step 3: Cross multiply
    354,294,537.40x = 531,441,806.10 × 243,329,656.60
  4. Step 4: Simplify right side
    354,294,537.40x = 129,315,552,181,196,784
  5. Step 5: Solve for x
    x = 129,315,552,181,196,784/354,294,537.40
  6. Step 6: Final answer
    x = 364,994,484.90

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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.