Home / 55,416,684.10-76,477,385.85-30,970,397.38

Finding the Fourth Proportional to 55,416,684.10, 76,477,385.85 and 30,970,397.38

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Solution

The fourth proportional to 55,416,684.10, 76,477,385.85 and 30,970,397.38 is: 42,740,468.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,416,684.10 : 76,477,385.85 = 30,970,397.38 : x
  2. Step 2: Convert to fraction form
    55,416,684.10/76,477,385.85 = 30,970,397.38/x
  3. Step 3: Cross multiply
    55,416,684.10x = 76,477,385.85 × 30,970,397.38
  4. Step 4: Simplify right side
    55,416,684.10x = 2,368,535,030,358,089
  5. Step 5: Solve for x
    x = 2,368,535,030,358,089/55,416,684.10
  6. Step 6: Final answer
    x = 42,740,468.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.