Home / 988,592,015.40-1,482,888,023.10-261,654,210.60

Finding the Fourth Proportional to 988,592,015.40, 1,482,888,023.10 and 261,654,210.60

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Solution

The fourth proportional to 988,592,015.40, 1,482,888,023.10 and 261,654,210.60 is: 392,481,315.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    988,592,015.40 : 1,482,888,023.10 = 261,654,210.60 : x
  2. Step 2: Convert to fraction form
    988,592,015.40/1,482,888,023.10 = 261,654,210.60/x
  3. Step 3: Cross multiply
    988,592,015.40x = 1,482,888,023.10 × 261,654,210.60
  4. Step 4: Simplify right side
    988,592,015.40x = 388,003,895,092,425,024
  5. Step 5: Solve for x
    x = 388,003,895,092,425,024/988,592,015.40
  6. Step 6: Final answer
    x = 392,481,315.90

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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.