Home / 42,085,384.80-63,128,077.20-40,825,672.80

Finding the Fourth Proportional to 42,085,384.80, 63,128,077.20 and 40,825,672.80

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Solution

The fourth proportional to 42,085,384.80, 63,128,077.20 and 40,825,672.80 is: 61,238,509.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,085,384.80 : 63,128,077.20 = 40,825,672.80 : x
  2. Step 2: Convert to fraction form
    42,085,384.80/63,128,077.20 = 40,825,672.80/x
  3. Step 3: Cross multiply
    42,085,384.80x = 63,128,077.20 × 40,825,672.80
  4. Step 4: Simplify right side
    42,085,384.80x = 2,577,246,224,260,340
  5. Step 5: Solve for x
    x = 2,577,246,224,260,340/42,085,384.80
  6. Step 6: Final answer
    x = 61,238,509.20

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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.