Home / 53,465,792.20-80,056,970.70-42,128,384.20

Finding the Fourth Proportional to 53,465,792.20, 80,056,970.70 and 42,128,384.20

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Solution

The fourth proportional to 53,465,792.20, 80,056,970.70 and 42,128,384.20 is: 63,080,909.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,465,792.20 : 80,056,970.70 = 42,128,384.20 : x
  2. Step 2: Convert to fraction form
    53,465,792.20/80,056,970.70 = 42,128,384.20/x
  3. Step 3: Cross multiply
    53,465,792.20x = 80,056,970.70 × 42,128,384.20
  4. Step 4: Simplify right side
    53,465,792.20x = 3,372,670,819,537,743.50
  5. Step 5: Solve for x
    x = 3,372,670,819,537,743.50/53,465,792.20
  6. Step 6: Final answer
    x = 63,080,909.88

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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.