Home / 666,034,325.60-997,138,300.80-407,753,999.60

Finding the Fourth Proportional to 666,034,325.60, 997,138,300.80 and 407,753,999.60

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Solution

The fourth proportional to 666,034,325.60, 997,138,300.80 and 407,753,999.60 is: 610,459,723.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,034,325.60 : 997,138,300.80 = 407,753,999.60 : x
  2. Step 2: Convert to fraction form
    666,034,325.60/997,138,300.80 = 407,753,999.60/x
  3. Step 3: Cross multiply
    666,034,325.60x = 997,138,300.80 × 407,753,999.60
  4. Step 4: Simplify right side
    666,034,325.60x = 406,587,130,305,547,904
  5. Step 5: Solve for x
    x = 406,587,130,305,547,904/666,034,325.60
  6. Step 6: Final answer
    x = 610,459,723.59

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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.