Home / 927,296,028.80-1,390,944,043.20-417,688,092.80

Finding the Fourth Proportional to 927,296,028.80, 1,390,944,043.20 and 417,688,092.80

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Solution

The fourth proportional to 927,296,028.80, 1,390,944,043.20 and 417,688,092.80 is: 626,532,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    927,296,028.80 : 1,390,944,043.20 = 417,688,092.80 : x
  2. Step 2: Convert to fraction form
    927,296,028.80/1,390,944,043.20 = 417,688,092.80/x
  3. Step 3: Cross multiply
    927,296,028.80x = 1,390,944,043.20 × 417,688,092.80
  4. Step 4: Simplify right side
    927,296,028.80x = 580,980,764,595,728,896
  5. Step 5: Solve for x
    x = 580,980,764,595,728,896/927,296,028.80
  6. Step 6: Final answer
    x = 626,532,139.20

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1.5x scale

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.