Home / 7,977,605.12-11,009,051.52-4,355,907.20

Finding the Fourth Proportional to 7,977,605.12, 11,009,051.52 and 4,355,907.20

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Solution

The fourth proportional to 7,977,605.12, 11,009,051.52 and 4,355,907.20 is: 6,011,128.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,977,605.12 : 11,009,051.52 = 4,355,907.20 : x
  2. Step 2: Convert to fraction form
    7,977,605.12/11,009,051.52 = 4,355,907.20/x
  3. Step 3: Cross multiply
    7,977,605.12x = 11,009,051.52 × 4,355,907.20
  4. Step 4: Simplify right side
    7,977,605.12x = 47,954,406,781,138.95
  5. Step 5: Solve for x
    x = 47,954,406,781,138.95/7,977,605.12
  6. Step 6: Final answer
    x = 6,011,128.16

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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.