Home / 20,287,681.30-30,434,364.51-6,641,895.70

Finding the Fourth Proportional to 20,287,681.30, 30,434,364.51 and 6,641,895.70

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Solution

The fourth proportional to 20,287,681.30, 30,434,364.51 and 6,641,895.70 is: 9,963,774.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,287,681.30 : 30,434,364.51 = 6,641,895.70 : x
  2. Step 2: Convert to fraction form
    20,287,681.30/30,434,364.51 = 6,641,895.70/x
  3. Step 3: Cross multiply
    20,287,681.30x = 30,434,364.51 × 6,641,895.70
  4. Step 4: Simplify right side
    20,287,681.30x = 202,141,874,771,201.62
  5. Step 5: Solve for x
    x = 202,141,874,771,201.62/20,287,681.30
  6. Step 6: Final answer
    x = 9,963,774.16

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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.