Home / 607,394,636.86-912,545,442.06-389,471,938.78

Finding the Fourth Proportional to 607,394,636.86, 912,545,442.06 and 389,471,938.78

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Solution

The fourth proportional to 607,394,636.86, 912,545,442.06 and 389,471,938.78 is: 585,139,909.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,394,636.86 : 912,545,442.06 = 389,471,938.78 : x
  2. Step 2: Convert to fraction form
    607,394,636.86/912,545,442.06 = 389,471,938.78/x
  3. Step 3: Cross multiply
    607,394,636.86x = 912,545,442.06 × 389,471,938.78
  4. Step 4: Simplify right side
    607,394,636.86x = 355,410,842,543,960,320
  5. Step 5: Solve for x
    x = 355,410,842,543,960,320/607,394,636.86
  6. Step 6: Final answer
    x = 585,139,909.01

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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.