Home / 499,539,818.96-749,305,525.04-390,456,743.12

Finding the Fourth Proportional to 499,539,818.96, 749,305,525.04 and 390,456,743.12

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Solution

The fourth proportional to 499,539,818.96, 749,305,525.04 and 390,456,743.12 is: 585,681,829.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,539,818.96 : 749,305,525.04 = 390,456,743.12 : x
  2. Step 2: Convert to fraction form
    499,539,818.96/749,305,525.04 = 390,456,743.12/x
  3. Step 3: Cross multiply
    499,539,818.96x = 749,305,525.04 × 390,456,743.12
  4. Step 4: Simplify right side
    499,539,818.96x = 292,571,394,908,939,968
  5. Step 5: Solve for x
    x = 292,571,394,908,939,968/499,539,818.96
  6. Step 6: Final answer
    x = 585,681,829.16

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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.