Home / 354,242,238.40-531,462,890.40-172,495,345.60

Finding the Fourth Proportional to 354,242,238.40, 531,462,890.40 and 172,495,345.60

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Solution

The fourth proportional to 354,242,238.40, 531,462,890.40 and 172,495,345.60 is: 258,791,485.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,242,238.40 : 531,462,890.40 = 172,495,345.60 : x
  2. Step 2: Convert to fraction form
    354,242,238.40/531,462,890.40 = 172,495,345.60/x
  3. Step 3: Cross multiply
    354,242,238.40x = 531,462,890.40 × 172,495,345.60
  4. Step 4: Simplify right side
    354,242,238.40x = 91,674,874,953,122,912
  5. Step 5: Solve for x
    x = 91,674,874,953,122,912/354,242,238.40
  6. Step 6: Final answer
    x = 258,791,485.08

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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.