Home / 518,341,510.80-777,512,266.20-380,592,003.60

Finding the Fourth Proportional to 518,341,510.80, 777,512,266.20 and 380,592,003.60

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Solution

The fourth proportional to 518,341,510.80, 777,512,266.20 and 380,592,003.60 is: 570,888,005.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    518,341,510.80 : 777,512,266.20 = 380,592,003.60 : x
  2. Step 2: Convert to fraction form
    518,341,510.80/777,512,266.20 = 380,592,003.60/x
  3. Step 3: Cross multiply
    518,341,510.80x = 777,512,266.20 × 380,592,003.60
  4. Step 4: Simplify right side
    518,341,510.80x = 295,914,951,216,634,624
  5. Step 5: Solve for x
    x = 295,914,951,216,634,624/518,341,510.80
  6. Step 6: Final answer
    x = 570,888,005.40

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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.