Home / 8,447,784.30-11,657,871.95-4,777,421.45

Finding the Fourth Proportional to 8,447,784.30, 11,657,871.95 and 4,777,421.45

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Solution

The fourth proportional to 8,447,784.30, 11,657,871.95 and 4,777,421.45 is: 6,592,801.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,447,784.30 : 11,657,871.95 = 4,777,421.45 : x
  2. Step 2: Convert to fraction form
    8,447,784.30/11,657,871.95 = 4,777,421.45/x
  3. Step 3: Cross multiply
    8,447,784.30x = 11,657,871.95 × 4,777,421.45
  4. Step 4: Simplify right side
    8,447,784.30x = 55,694,567,433,106.87
  5. Step 5: Solve for x
    x = 55,694,567,433,106.87/8,447,784.30
  6. Step 6: Final answer
    x = 6,592,801.79

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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.