Home / 1,010,190,622.73-1,516,102,065.79-428,333,438.90

Finding the Fourth Proportional to 1,010,190,622.73, 1,516,102,065.79 and 428,333,438.90

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Solution

The fourth proportional to 1,010,190,622.73, 1,516,102,065.79 and 428,333,438.90 is: 642,846,208.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,010,190,622.73 : 1,516,102,065.79 = 428,333,438.90 : x
  2. Step 2: Convert to fraction form
    1,010,190,622.73/1,516,102,065.79 = 428,333,438.90/x
  3. Step 3: Cross multiply
    1,010,190,622.73x = 1,516,102,065.79 × 428,333,438.90
  4. Step 4: Simplify right side
    1,010,190,622.73x = 649,397,211,565,944,064
  5. Step 5: Solve for x
    x = 649,397,211,565,944,064/1,010,190,622.73
  6. Step 6: Final answer
    x = 642,846,208.39

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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.