Home / 12,942,684.90-17,860,891.64-7,141,466.32

Finding the Fourth Proportional to 12,942,684.90, 17,860,891.64 and 7,141,466.32

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Solution

The fourth proportional to 12,942,684.90, 17,860,891.64 and 7,141,466.32 is: 9,855,216.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,942,684.90 : 17,860,891.64 = 7,141,466.32 : x
  2. Step 2: Convert to fraction form
    12,942,684.90/17,860,891.64 = 7,141,466.32/x
  3. Step 3: Cross multiply
    12,942,684.90x = 17,860,891.64 × 7,141,466.32
  4. Step 4: Simplify right side
    12,942,684.90x = 127,552,956,011,870.02
  5. Step 5: Solve for x
    x = 127,552,956,011,870.02/12,942,684.90
  6. Step 6: Final answer
    x = 9,855,216.05

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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.