Home / 807,796,417.60-1,209,997,748.21-512,539,557.56

Finding the Fourth Proportional to 807,796,417.60, 1,209,997,748.21 and 512,539,557.56

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Solution

The fourth proportional to 807,796,417.60, 1,209,997,748.21 and 512,539,557.56 is: 767,732,682.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    807,796,417.60 : 1,209,997,748.21 = 512,539,557.56 : x
  2. Step 2: Convert to fraction form
    807,796,417.60/1,209,997,748.21 = 512,539,557.56/x
  3. Step 3: Cross multiply
    807,796,417.60x = 1,209,997,748.21 × 512,539,557.56
  4. Step 4: Simplify right side
    807,796,417.60x = 620,171,710,512,891,904
  5. Step 5: Solve for x
    x = 620,171,710,512,891,904/807,796,417.60
  6. Step 6: Final answer
    x = 767,732,682.40

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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.