Home / 8,791,784.76-12,138,587.64-5,489,112.72

Finding the Fourth Proportional to 8,791,784.76, 12,138,587.64 and 5,489,112.72

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Solution

The fourth proportional to 8,791,784.76, 12,138,587.64 and 5,489,112.72 is: 7,578,674.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,791,784.76 : 12,138,587.64 = 5,489,112.72 : x
  2. Step 2: Convert to fraction form
    8,791,784.76/12,138,587.64 = 5,489,112.72/x
  3. Step 3: Cross multiply
    8,791,784.76x = 12,138,587.64 × 5,489,112.72
  4. Step 4: Simplify right side
    8,791,784.76x = 66,630,075,817,558.78
  5. Step 5: Solve for x
    x = 66,630,075,817,558.78/8,791,784.76
  6. Step 6: Final answer
    x = 7,578,674.60

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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.