Home / 765,012,798.20-1,145,606,009.70-611,957,790.20

Finding the Fourth Proportional to 765,012,798.20, 1,145,606,009.70 and 611,957,790.20

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Solution

The fourth proportional to 765,012,798.20, 1,145,606,009.70 and 611,957,790.20 is: 916,406,266.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,012,798.20 : 1,145,606,009.70 = 611,957,790.20 : x
  2. Step 2: Convert to fraction form
    765,012,798.20/1,145,606,009.70 = 611,957,790.20/x
  3. Step 3: Cross multiply
    765,012,798.20x = 1,145,606,009.70 × 611,957,790.20
  4. Step 4: Simplify right side
    765,012,798.20x = 701,062,522,135,851,904
  5. Step 5: Solve for x
    x = 701,062,522,135,851,904/765,012,798.20
  6. Step 6: Final answer
    x = 916,406,266.39

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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.