Home / 7,157,694-9,877,617.72-3,938,430

Finding the Fourth Proportional to 7,157,694, 9,877,617.72 and 3,938,430

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Solution

The fourth proportional to 7,157,694, 9,877,617.72 and 3,938,430 is: 5,435,033.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,157,694 : 9,877,617.72 = 3,938,430 : x
  2. Step 2: Convert to fraction form
    7,157,694/9,877,617.72 = 3,938,430/x
  3. Step 3: Cross multiply
    7,157,694x = 9,877,617.72 × 3,938,430
  4. Step 4: Simplify right side
    7,157,694x = 38,902,305,956,979.60
  5. Step 5: Solve for x
    x = 38,902,305,956,979.60/7,157,694
  6. Step 6: Final answer
    x = 5,435,033.40

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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.