Home / 42,980,340.80-64,470,511.20-40,458,843.20

Finding the Fourth Proportional to 42,980,340.80, 64,470,511.20 and 40,458,843.20

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Solution

The fourth proportional to 42,980,340.80, 64,470,511.20 and 40,458,843.20 is: 60,688,264.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,980,340.80 : 64,470,511.20 = 40,458,843.20 : x
  2. Step 2: Convert to fraction form
    42,980,340.80/64,470,511.20 = 40,458,843.20/x
  3. Step 3: Cross multiply
    42,980,340.80x = 64,470,511.20 × 40,458,843.20
  4. Step 4: Simplify right side
    42,980,340.80x = 2,608,402,303,664,644
  5. Step 5: Solve for x
    x = 2,608,402,303,664,644/42,980,340.80
  6. Step 6: Final answer
    x = 60,688,264.80

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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.