Home / 977,412,666.60-1,466,118,999.90-287,389,672.20

Finding the Fourth Proportional to 977,412,666.60, 1,466,118,999.90 and 287,389,672.20

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Solution

The fourth proportional to 977,412,666.60, 1,466,118,999.90 and 287,389,672.20 is: 431,084,508.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    977,412,666.60 : 1,466,118,999.90 = 287,389,672.20 : x
  2. Step 2: Convert to fraction form
    977,412,666.60/1,466,118,999.90 = 287,389,672.20/x
  3. Step 3: Cross multiply
    977,412,666.60x = 1,466,118,999.90 × 287,389,672.20
  4. Step 4: Simplify right side
    977,412,666.60x = 421,347,458,787,452,864
  5. Step 5: Solve for x
    x = 421,347,458,787,452,864/977,412,666.60
  6. Step 6: Final answer
    x = 431,084,508.30

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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.