Home / 28,143,802.08-42,184,333.35-12,768,032.97

Finding the Fourth Proportional to 28,143,802.08, 42,184,333.35 and 12,768,032.97

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Solution

The fourth proportional to 28,143,802.08, 42,184,333.35 and 12,768,032.97 is: 19,137,817.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,143,802.08 : 42,184,333.35 = 12,768,032.97 : x
  2. Step 2: Convert to fraction form
    28,143,802.08/42,184,333.35 = 12,768,032.97/x
  3. Step 3: Cross multiply
    28,143,802.08x = 42,184,333.35 × 12,768,032.97
  4. Step 4: Simplify right side
    28,143,802.08x = 538,610,959,030,270.62
  5. Step 5: Solve for x
    x = 538,610,959,030,270.62/28,143,802.08
  6. Step 6: Final answer
    x = 19,137,817.89

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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.