Home / 6,926,809.80-10,390,214.70-1,878,112.20

Finding the Fourth Proportional to 6,926,809.80, 10,390,214.70 and 1,878,112.20

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Solution

The fourth proportional to 6,926,809.80, 10,390,214.70 and 1,878,112.20 is: 2,817,168.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,926,809.80 : 10,390,214.70 = 1,878,112.20 : x
  2. Step 2: Convert to fraction form
    6,926,809.80/10,390,214.70 = 1,878,112.20/x
  3. Step 3: Cross multiply
    6,926,809.80x = 10,390,214.70 × 1,878,112.20
  4. Step 4: Simplify right side
    6,926,809.80x = 19,513,988,988,689.34
  5. Step 5: Solve for x
    x = 19,513,988,988,689.34/6,926,809.80
  6. Step 6: Final answer
    x = 2,817,168.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.