Home / 430,840,280.80-646,260,421.20-119,947,295.80

Finding the Fourth Proportional to 430,840,280.80, 646,260,421.20 and 119,947,295.80

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Solution

The fourth proportional to 430,840,280.80, 646,260,421.20 and 119,947,295.80 is: 179,920,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,840,280.80 : 646,260,421.20 = 119,947,295.80 : x
  2. Step 2: Convert to fraction form
    430,840,280.80/646,260,421.20 = 119,947,295.80/x
  3. Step 3: Cross multiply
    430,840,280.80x = 646,260,421.20 × 119,947,295.80
  4. Step 4: Simplify right side
    430,840,280.80x = 77,517,189,905,508,992
  5. Step 5: Solve for x
    x = 77,517,189,905,508,992/430,840,280.80
  6. Step 6: Final answer
    x = 179,920,943.70

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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.