Home / 423,090,687.60-634,636,031.40-277,971,865.20

Finding the Fourth Proportional to 423,090,687.60, 634,636,031.40 and 277,971,865.20

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Solution

The fourth proportional to 423,090,687.60, 634,636,031.40 and 277,971,865.20 is: 416,957,797.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,090,687.60 : 634,636,031.40 = 277,971,865.20 : x
  2. Step 2: Convert to fraction form
    423,090,687.60/634,636,031.40 = 277,971,865.20/x
  3. Step 3: Cross multiply
    423,090,687.60x = 634,636,031.40 × 277,971,865.20
  4. Step 4: Simplify right side
    423,090,687.60x = 176,410,961,371,383,744
  5. Step 5: Solve for x
    x = 176,410,961,371,383,744/423,090,687.60
  6. Step 6: Final answer
    x = 416,957,797.80

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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.