Home / 8,778,103.56-12,113,800.65-4,910,689.31

Finding the Fourth Proportional to 8,778,103.56, 12,113,800.65 and 4,910,689.31

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Solution

The fourth proportional to 8,778,103.56, 12,113,800.65 and 4,910,689.31 is: 6,776,761.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,778,103.56 : 12,113,800.65 = 4,910,689.31 : x
  2. Step 2: Convert to fraction form
    8,778,103.56/12,113,800.65 = 4,910,689.31/x
  3. Step 3: Cross multiply
    8,778,103.56x = 12,113,800.65 × 4,910,689.31
  4. Step 4: Simplify right side
    8,778,103.56x = 59,487,111,294,857.05
  5. Step 5: Solve for x
    x = 59,487,111,294,857.05/8,778,103.56
  6. Step 6: Final answer
    x = 6,776,761.16

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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.