Home / 186,971,621.40-280,457,432.10-100,878,179.40

Finding the Fourth Proportional to 186,971,621.40, 280,457,432.10 and 100,878,179.40

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Solution

The fourth proportional to 186,971,621.40, 280,457,432.10 and 100,878,179.40 is: 151,317,269.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,971,621.40 : 280,457,432.10 = 100,878,179.40 : x
  2. Step 2: Convert to fraction form
    186,971,621.40/280,457,432.10 = 100,878,179.40/x
  3. Step 3: Cross multiply
    186,971,621.40x = 280,457,432.10 × 100,878,179.40
  4. Step 4: Simplify right side
    186,971,621.40x = 28,292,035,149,447,124
  5. Step 5: Solve for x
    x = 28,292,035,149,447,124/186,971,621.40
  6. Step 6: Final answer
    x = 151,317,269.10

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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.