Home / 670,703,851.40-1,005,779,806.86-256,333,719.56

Finding the Fourth Proportional to 670,703,851.40, 1,005,779,806.86 and 256,333,719.56

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Solution

The fourth proportional to 670,703,851.40, 1,005,779,806.86 and 256,333,719.56 is: 384,395,107.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    670,703,851.40 : 1,005,779,806.86 = 256,333,719.56 : x
  2. Step 2: Convert to fraction form
    670,703,851.40/1,005,779,806.86 = 256,333,719.56/x
  3. Step 3: Cross multiply
    670,703,851.40x = 1,005,779,806.86 × 256,333,719.56
  4. Step 4: Simplify right side
    670,703,851.40x = 257,815,278,950,762,208
  5. Step 5: Solve for x
    x = 257,815,278,950,762,208/670,703,851.40
  6. Step 6: Final answer
    x = 384,395,107.34

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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.