Home / 13,879,805.11-19,154,729.52-7,684,851.63

Finding the Fourth Proportional to 13,879,805.11, 19,154,729.52 and 7,684,851.63

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Solution

The fourth proportional to 13,879,805.11, 19,154,729.52 and 7,684,851.63 is: 10,605,426.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,879,805.11 : 19,154,729.52 = 7,684,851.63 : x
  2. Step 2: Convert to fraction form
    13,879,805.11/19,154,729.52 = 7,684,851.63/x
  3. Step 3: Cross multiply
    13,879,805.11x = 19,154,729.52 × 7,684,851.63
  4. Step 4: Simplify right side
    13,879,805.11x = 147,201,254,373,981.12
  5. Step 5: Solve for x
    x = 147,201,254,373,981.12/13,879,805.11
  6. Step 6: Final answer
    x = 10,605,426.60

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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.