Home / 145,200,687.40-217,801,031.10-54,312,466.60

Finding the Fourth Proportional to 145,200,687.40, 217,801,031.10 and 54,312,466.60

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Solution

The fourth proportional to 145,200,687.40, 217,801,031.10 and 54,312,466.60 is: 81,468,699.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,200,687.40 : 217,801,031.10 = 54,312,466.60 : x
  2. Step 2: Convert to fraction form
    145,200,687.40/217,801,031.10 = 54,312,466.60/x
  3. Step 3: Cross multiply
    145,200,687.40x = 217,801,031.10 × 54,312,466.60
  4. Step 4: Simplify right side
    145,200,687.40x = 11,829,311,227,064,312
  5. Step 5: Solve for x
    x = 11,829,311,227,064,312/145,200,687.40
  6. Step 6: Final answer
    x = 81,468,699.90

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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.