Home / 12,878,068.56-17,767,859.12-7,719,547.92

Finding the Fourth Proportional to 12,878,068.56, 17,767,859.12 and 7,719,547.92

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Solution

The fourth proportional to 12,878,068.56, 17,767,859.12 and 7,719,547.92 is: 10,650,653.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,878,068.56 : 17,767,859.12 = 7,719,547.92 : x
  2. Step 2: Convert to fraction form
    12,878,068.56/17,767,859.12 = 7,719,547.92/x
  3. Step 3: Cross multiply
    12,878,068.56x = 17,767,859.12 × 7,719,547.92
  4. Step 4: Simplify right side
    12,878,068.56x = 137,159,839,912,649.03
  5. Step 5: Solve for x
    x = 137,159,839,912,649.03/12,878,068.56
  6. Step 6: Final answer
    x = 10,650,653.03

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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.