Home / 12,997,767.51-17,937,479.52-7,196,549.21

Finding the Fourth Proportional to 12,997,767.51, 17,937,479.52 and 7,196,549.21

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Solution

The fourth proportional to 12,997,767.51, 17,937,479.52 and 7,196,549.21 is: 9,931,548.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,997,767.51 : 17,937,479.52 = 7,196,549.21 : x
  2. Step 2: Convert to fraction form
    12,997,767.51/17,937,479.52 = 7,196,549.21/x
  3. Step 3: Cross multiply
    12,997,767.51x = 17,937,479.52 × 7,196,549.21
  4. Step 4: Simplify right side
    12,997,767.51x = 129,087,953,979,359.78
  5. Step 5: Solve for x
    x = 129,087,953,979,359.78/12,997,767.51
  6. Step 6: Final answer
    x = 9,931,548.16

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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.