Home / 186,971,616.40-280,457,424.60-100,878,174.40

Finding the Fourth Proportional to 186,971,616.40, 280,457,424.60 and 100,878,174.40

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Solution

The fourth proportional to 186,971,616.40, 280,457,424.60 and 100,878,174.40 is: 151,317,261.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,971,616.40 : 280,457,424.60 = 100,878,174.40 : x
  2. Step 2: Convert to fraction form
    186,971,616.40/280,457,424.60 = 100,878,174.40/x
  3. Step 3: Cross multiply
    186,971,616.40x = 280,457,424.60 × 100,878,174.40
  4. Step 4: Simplify right side
    186,971,616.40x = 28,292,032,990,573,656
  5. Step 5: Solve for x
    x = 28,292,032,990,573,656/186,971,616.40
  6. Step 6: Final answer
    x = 151,317,261.60

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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.