Home / 7,182,853.02-9,912,547.80-3,919,878.45

Finding the Fourth Proportional to 7,182,853.02, 9,912,547.80 and 3,919,878.45

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Solution

The fourth proportional to 7,182,853.02, 9,912,547.80 and 3,919,878.45 is: 5,409,547.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,182,853.02 : 9,912,547.80 = 3,919,878.45 : x
  2. Step 2: Convert to fraction form
    7,182,853.02/9,912,547.80 = 3,919,878.45/x
  3. Step 3: Cross multiply
    7,182,853.02x = 9,912,547.80 × 3,919,878.45
  4. Step 4: Simplify right side
    7,182,853.02x = 38,855,982,505,814.91
  5. Step 5: Solve for x
    x = 38,855,982,505,814.91/7,182,853.02
  6. Step 6: Final answer
    x = 5,409,547.21

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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.