Home / 145,165,742.40-217,748,613.60-130,385,121.60

Finding the Fourth Proportional to 145,165,742.40, 217,748,613.60 and 130,385,121.60

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Solution

The fourth proportional to 145,165,742.40, 217,748,613.60 and 130,385,121.60 is: 195,577,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,165,742.40 : 217,748,613.60 = 130,385,121.60 : x
  2. Step 2: Convert to fraction form
    145,165,742.40/217,748,613.60 = 130,385,121.60/x
  3. Step 3: Cross multiply
    145,165,742.40x = 217,748,613.60 × 130,385,121.60
  4. Step 4: Simplify right side
    145,165,742.40x = 28,391,179,462,467,412
  5. Step 5: Solve for x
    x = 28,391,179,462,467,412/145,165,742.40
  6. Step 6: Final answer
    x = 195,577,682.40

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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.