Home / 30,020,802.39-45,034,847.60-8,455,404.11

Finding the Fourth Proportional to 30,020,802.39, 45,034,847.60 and 8,455,404.11

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Solution

The fourth proportional to 30,020,802.39, 45,034,847.60 and 8,455,404.11 is: 12,684,132.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,020,802.39 : 45,034,847.60 = 8,455,404.11 : x
  2. Step 2: Convert to fraction form
    30,020,802.39/45,034,847.60 = 8,455,404.11/x
  3. Step 3: Cross multiply
    30,020,802.39x = 45,034,847.60 × 8,455,404.11
  4. Step 4: Simplify right side
    30,020,802.39x = 380,787,835,222,812.38
  5. Step 5: Solve for x
    x = 380,787,835,222,812.38/30,020,802.39
  6. Step 6: Final answer
    x = 12,684,132.50

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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.