Home / 13,518,830.66-18,656,733.39-7,719,475.28

Finding the Fourth Proportional to 13,518,830.66, 18,656,733.39 and 7,719,475.28

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Solution

The fourth proportional to 13,518,830.66, 18,656,733.39 and 7,719,475.28 is: 10,653,302.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,518,830.66 : 18,656,733.39 = 7,719,475.28 : x
  2. Step 2: Convert to fraction form
    13,518,830.66/18,656,733.39 = 7,719,475.28/x
  3. Step 3: Cross multiply
    13,518,830.66x = 18,656,733.39 × 7,719,475.28
  4. Step 4: Simplify right side
    13,518,830.66x = 144,020,192,209,655.59
  5. Step 5: Solve for x
    x = 144,020,192,209,655.59/13,518,830.66
  6. Step 6: Final answer
    x = 10,653,302.48

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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.