Home / 759,350,631.47-1,047,896,151.59-420,259,766.63

Finding the Fourth Proportional to 759,350,631.47, 1,047,896,151.59 and 420,259,766.63

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Solution

The fourth proportional to 759,350,631.47, 1,047,896,151.59 and 420,259,766.63 is: 579,954,205.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,350,631.47 : 1,047,896,151.59 = 420,259,766.63 : x
  2. Step 2: Convert to fraction form
    759,350,631.47/1,047,896,151.59 = 420,259,766.63/x
  3. Step 3: Cross multiply
    759,350,631.47x = 1,047,896,151.59 × 420,259,766.63
  4. Step 4: Simplify right side
    759,350,631.47x = 440,388,592,115,499,648
  5. Step 5: Solve for x
    x = 440,388,592,115,499,648/759,350,631.47
  6. Step 6: Final answer
    x = 579,954,205.43

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.