Home / 539,135,999.40-808,703,999.10-357,588,172.20

Finding the Fourth Proportional to 539,135,999.40, 808,703,999.10 and 357,588,172.20

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Solution

The fourth proportional to 539,135,999.40, 808,703,999.10 and 357,588,172.20 is: 536,382,258.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    539,135,999.40 : 808,703,999.10 = 357,588,172.20 : x
  2. Step 2: Convert to fraction form
    539,135,999.40/808,703,999.10 = 357,588,172.20/x
  3. Step 3: Cross multiply
    539,135,999.40x = 808,703,999.10 × 357,588,172.20
  4. Step 4: Simplify right side
    539,135,999.40x = 289,182,984,888,999,424
  5. Step 5: Solve for x
    x = 289,182,984,888,999,424/539,135,999.40
  6. Step 6: Final answer
    x = 536,382,258.30

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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.