Home / 7,190,971.94-9,923,482.28-3,927,788.74

Finding the Fourth Proportional to 7,190,971.94, 9,923,482.28 and 3,927,788.74

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Solution

The fourth proportional to 7,190,971.94, 9,923,482.28 and 3,927,788.74 is: 5,420,316.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,190,971.94 : 9,923,482.28 = 3,927,788.74 : x
  2. Step 2: Convert to fraction form
    7,190,971.94/9,923,482.28 = 3,927,788.74/x
  3. Step 3: Cross multiply
    7,190,971.94x = 9,923,482.28 × 3,927,788.74
  4. Step 4: Simplify right side
    7,190,971.94x = 38,977,341,960,973.52
  5. Step 5: Solve for x
    x = 38,977,341,960,973.52/7,190,971.94
  6. Step 6: Final answer
    x = 5,420,316.24

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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.