Home / 145,220,841,138.60-217,539,534,358.90-72,312,339,633.55

Finding the Fourth Proportional to 145,220,841,138.60, 217,539,534,358.90 and 72,312,339,633.55

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Solution

The fourth proportional to 145,220,841,138.60, 217,539,534,358.90 and 72,312,339,633.55 is: 108,323,244,576.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,220,841,138.60 : 217,539,534,358.90 = 72,312,339,633.55 : x
  2. Step 2: Convert to fraction form
    145,220,841,138.60/217,539,534,358.90 = 72,312,339,633.55/x
  3. Step 3: Cross multiply
    145,220,841,138.60x = 217,539,534,358.90 × 72,312,339,633.55
  4. Step 4: Simplify right side
    145,220,841,138.60x = 15,730,792,692,284,227,846,144
  5. Step 5: Solve for x
    x = 15,730,792,692,284,227,846,144/145,220,841,138.60
  6. Step 6: Final answer
    x = 108,323,244,576.66

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1.5x scale

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.