Home / 689,671,996.80-1,034,507,995.20-362,020,905.60

Finding the Fourth Proportional to 689,671,996.80, 1,034,507,995.20 and 362,020,905.60

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Solution

The fourth proportional to 689,671,996.80, 1,034,507,995.20 and 362,020,905.60 is: 543,031,358.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    689,671,996.80 : 1,034,507,995.20 = 362,020,905.60 : x
  2. Step 2: Convert to fraction form
    689,671,996.80/1,034,507,995.20 = 362,020,905.60/x
  3. Step 3: Cross multiply
    689,671,996.80x = 1,034,507,995.20 × 362,020,905.60
  4. Step 4: Simplify right side
    689,671,996.80x = 374,513,521,272,744,512
  5. Step 5: Solve for x
    x = 374,513,521,272,744,512/689,671,996.80
  6. Step 6: Final answer
    x = 543,031,358.40

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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.