Home / 280,056,599.40-420,084,899.10-177,893,956.20

Finding the Fourth Proportional to 280,056,599.40, 420,084,899.10 and 177,893,956.20

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Solution

The fourth proportional to 280,056,599.40, 420,084,899.10 and 177,893,956.20 is: 266,840,934.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,056,599.40 : 420,084,899.10 = 177,893,956.20 : x
  2. Step 2: Convert to fraction form
    280,056,599.40/420,084,899.10 = 177,893,956.20/x
  3. Step 3: Cross multiply
    280,056,599.40x = 420,084,899.10 × 177,893,956.20
  4. Step 4: Simplify right side
    280,056,599.40x = 74,730,564,640,776,816
  5. Step 5: Solve for x
    x = 74,730,564,640,776,816/280,056,599.40
  6. Step 6: Final answer
    x = 266,840,934.30

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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.