Home / 7,140,830.40-9,854,334.72-3,921,566.40

Finding the Fourth Proportional to 7,140,830.40, 9,854,334.72 and 3,921,566.40

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Solution

The fourth proportional to 7,140,830.40, 9,854,334.72 and 3,921,566.40 is: 5,411,755.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,140,830.40 : 9,854,334.72 = 3,921,566.40 : x
  2. Step 2: Convert to fraction form
    7,140,830.40/9,854,334.72 = 3,921,566.40/x
  3. Step 3: Cross multiply
    7,140,830.40x = 9,854,334.72 × 3,921,566.40
  4. Step 4: Simplify right side
    7,140,830.40x = 38,644,427,932,305.41
  5. Step 5: Solve for x
    x = 38,644,427,932,305.41/7,140,830.40
  6. Step 6: Final answer
    x = 5,411,755.46

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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.